content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Determining Optimal Link Capacity Expansions in Road Networks Using Cuckoo Search Algorithm with Lévy Flights
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 718015, 11 pages
http://dx.doi.org/10.1155/2013/718015
Research Article
Determining Optimal Link Capacity Expansions in Road Networks Using Cuckoo... | 4 | [
0.0216064453125,
0.031005859375,
0.0036163330078125,
0.0086669921875,
-0.031005859375,
0.01422119140625,
-0.05224609375,
0.002593994140625,
-0.0172119140625,
0.0299072265625,
-0.1025390625,
0.06201171875,
0.0130615234375,
0.01068115234375,
-0.0634765625,
0.0908203125,
0.0074768066406... | 27,400 | 27400 | |
Robust Control Charts for Monitoring Process Mean of Phase-I Multivariate Individual Observations
Journal of Quality and Reliability Engineering
Volume 2013 (2013), Article ID 542305, 14 pages
http://dx.doi.org/10.1155/2013/542305
Research Article
Robust Control Charts for Monitoring Process Mean of Phase-I Multivari... | 4 | [
0.01318359375,
-0.08154296875,
-0.019287109375,
0.06640625,
0.0166015625,
0.0145263671875,
-0.009765625,
0.0115966796875,
0.05322265625,
0.03173828125,
-0.01446533203125,
0.015869140625,
0.064453125,
-0.027587890625,
-0.043701171875,
-0.0927734375,
0.0966796875,
-0.0927734375,
-0... | 27,401 | 27401 | |
Integration bt parts help
September 29th 2008, 02:42 PM #1
Newbie
Joined
Sep 2008
Posts
3
1. The problem statement, all variables and given/known data
Estimate $\int_{0}^{10} f(x) g'(x) dx$ for f(x) = $x^{2}$
and g has the values in the following table.
$<br /> \begin{array}{l | c|c|c|c|c|c ... | 4 | [
-0.032958984375,
0.02099609375,
0.09814453125,
-0.05126953125,
0.04443359375,
0.0012359619140625,
0.0014190673828125,
0.0751953125,
-0.0986328125,
0.011962890625,
0.0279541015625,
-0.026611328125,
0.0264892578125,
-0.004150390625,
-0.03662109375,
0.0166015625,
-0.0062255859375,
0.0... | 27,402 | 27402 | |
Euler function proof
July 23rd 2011, 07:31 AM #1
Junior Member
Joined
Feb 2010
Posts
45
Euler function proof
Show that $\phi(n) = 14$ is impossible.
My guess would be to start by assuming $\phi(n) = 14$ and try to find a contradiction.
$\phi(15) = 14$ would be true if 15 is prime. But it is not... | 5 | [
-0.07470703125,
-0.0118408203125,
0.04638671875,
-0.01409912109375,
0.0196533203125,
0.009765625,
0.08740234375,
0.09033203125,
-0.002227783203125,
0.0089111328125,
-0.00173187255859375,
0.0751953125,
-0.044921875,
0.053955078125,
-0.06982421875,
-0.0205078125,
-0.0184326171875,
-0... | 27,403 | 27403 | |
please help
how do you solve this if av=63 vb=6.0 fb=45 :confused: what are the steps you use
Quote: Originally Posted by boondock PEMDAS my friend. Start with the squared term in the denominator, evaluate the rest of the fraction. Then remember to multiply then add. Jameson
so 0.159 squared is .025 right? then i div... | 4 | [
0.01708984375,
0.07177734375,
-0.04248046875,
0.018798828125,
0.04150390625,
0.004425048828125,
-0.08837890625,
0.01226806640625,
0.0020294189453125,
0.0294189453125,
0.0211181640625,
-0.0615234375,
-0.053466796875,
0.04150390625,
-0.01287841796875,
0.06005859375,
-0.07373046875,
-... | 27,404 | 27404 | |
INLA: Bayes goes to Norway
INLA is not the Norwegian answer to ABBA; that would probably be a-ha. INLA is the answer to ‘Why do I have enough time to cook a three-course meal while running MCMC analyses?”.
Integrated Nested Laplace Approximations (INLA) is based on direct numerical integration (rather than simulation... | 4 | [
-0.07763671875,
-0.044189453125,
0.044189453125,
-0.005279541015625,
-0.00714111328125,
-0.115234375,
-0.109375,
0.0084228515625,
0.0361328125,
0.0732421875,
0.014404296875,
-0.0361328125,
0.01171875,
-0.059326171875,
0.01483154296875,
0.00665283203125,
0.0849609375,
-0.02917480468... | 27,405 | 27405 | |
A Comparative Study of Improved Artificial Bee Colony Algorithms Applied to Multilevel Image Thresholding
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 927591, 17 pages
http://dx.doi.org/10.1155/2013/927591
Research Article
A Comparative Study of Improved Artificial Bee Colony Algorithms Applied... | 4 | [
0.01239013671875,
0.000545501708984375,
0.0908203125,
-0.10498046875,
0.01007080078125,
-0.08349609375,
0.00054168701171875,
-0.0140380859375,
-0.0201416015625,
0.009033203125,
0.002410888671875,
-0.036376953125,
0.0732421875,
0.05126953125,
-0.0228271484375,
0.00811767578125,
0.0195... | 27,406 | 27406 | |
Pareto PDF
February 26th 2009, 07:34 PM
VENI
Pareto PDF
Can someone show me how this integrates to 1?
$\int_{-\infty}^{\infty} \frac{\gamma \theta^{\gamma}}{x^{\gamma +1}}$
Also, can you show me how to derive the variance and quartiles? Thank you.
February 27th 2009, 02:09 AM
mr fantastic
Quote... | 5 | [
-0.08154296875,
-0.04443359375,
0.00830078125,
-0.062255859375,
0.00518798828125,
-0.0478515625,
0.08740234375,
0.033203125,
-0.041259765625,
0.01031494140625,
0.01519775390625,
0.0220947265625,
0.05859375,
0.0130615234375,
-0.0849609375,
0.0849609375,
0.056396484375,
-0.0380859375... | 27,407 | 27407 | |
Derivatives of Logarithmic and Exponential Function
March 27th 2008, 08:35 PM #1
Newbie
Joined
Feb 2008
Posts
11
Derivatives of Logarithmic and Exponential Function
y = (1+ log(x-numerator)3-base) / x
I didnt know how to write the log but the numerator is x and the base is 3.
Thanks in advance
... | 5 | [
0.01470947265625,
-0.072265625,
0.0021209716796875,
-0.078125,
-0.00732421875,
-0.095703125,
0.04296875,
-0.017822265625,
0.068359375,
0.050048828125,
0.05029296875,
-0.10205078125,
-0.02197265625,
-0.000637054443359375,
0.0693359375,
0.0284423828125,
-0.11376953125,
0.00048828125,... | 27,408 | 27408 | |
DSPACE Real-Time Implementation of MPPT-Based FLC Method
International Journal of Photoenergy
Volume 2013 (2013), Article ID 549273, 11 pages
http://dx.doi.org/10.1155/2013/549273
Research Article
DSPACE Real-Time Implementation of MPPT-Based FLC Method
^1Electrical Engineering Department, King Saud University, Saud... | 4 | [
-0.050048828125,
-0.000820159912109375,
-0.06982421875,
0.044189453125,
0.047119140625,
0.017333984375,
0.07421875,
0.051513671875,
-0.001556396484375,
0.0595703125,
0.0712890625,
0.053466796875,
0.037353515625,
-0.01336669921875,
-0.00933837890625,
0.09423828125,
0.03125,
-0.05493... | 27,409 | 27409 | |
Total Surface Area
July 9th 2010, 07:27 PM
Mariolee
Total Surface Area
Hello, I do not understand this geometry question about toal sruface area. I think the answer they gave me is wrong.:
25. The net of a right triangular prism is shown below. Use the ruler on the Mathematics Chart to measure the dimension... | 4 | [
0.0380859375,
0.05126953125,
0.001983642578125,
-0.057861328125,
-0.05419921875,
-0.0101318359375,
0.031005859375,
0.09423828125,
-0.053955078125,
0.005279541015625,
-0.0145263671875,
-0.052001953125,
-0.00433349609375,
0.0247802734375,
-0.00064849853515625,
0.033935546875,
-0.066406... | 27,410 | 27410 | |
Mechanics question
October 14th 2008, 11:15 AM #1
Member
Joined
Sep 2008
Posts
239
Mechanics question
Hi could anyone help with this? I can do part A but not part B.
A pebble is thrown vertically upwards from a point A with initial velocity 11.2 m/s
A) Find the greatest point above A that can b... | 4 | [
0.01318359375,
0.06103515625,
0.056640625,
-0.1494140625,
-0.0478515625,
0.043701171875,
-0.00927734375,
0.07470703125,
-0.03466796875,
0.0263671875,
0.0174560546875,
0.0177001953125,
-0.008544921875,
0.025146484375,
-0.0206298828125,
0.0634765625,
0.0303955078125,
0.027099609375,
... | 27,411 | 27411 | |
i cant visualize/understand this convergence proof
December 13th 2008, 03:05 AM
transgalactic
i cant visualize/understand this convergence proof
=================================================
lim inf (x_n) = inf {x: infinitely many x_n are < x }
lim sup (x_n) = sup {x: infinitely many x_n are > x }.
... | 4 | [
-0.09375,
-0.0732421875,
0.052490234375,
-0.0022430419921875,
0.1484375,
0.031005859375,
0.07470703125,
0.08056640625,
0.0167236328125,
-0.0634765625,
0.039306640625,
-0.00555419921875,
-0.024169921875,
-0.019287109375,
0.031982421875,
-0.044189453125,
-0.01495361328125,
-0.0578613... | 27,412 | 27412 | |
Help with Lagrange Multipliers
April 4th 2013, 12:21 PM
Confucius
Help with Lagrange Multipliers
I am new to the forums, so please forgive any errors in formatting a request for help. Thanks to everyone who views this!
------------------------------------------------------------------------------------------... | 5 | [
0.00848388671875,
0.060791015625,
-0.06884765625,
-0.05419921875,
0.009521484375,
0.047119140625,
0.0517578125,
0.030517578125,
-0.0003871917724609375,
0.004425048828125,
0.09228515625,
-0.03369140625,
0.0262451171875,
0.050048828125,
0.08154296875,
0.0712890625,
-0.0274658203125,
... | 27,413 | 27413 | |
Experimental Study and Modeling of Fouling in Immersed Membrane Bioreactor Operating in Constant Pressure Filtration
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 456143, 7 pages
http://dx.doi.org/10.1155/2013/456143
Research Article
Experimental Study and Modeling of Fouling in Immersed Membran... | 4 | [
-0.0174560546875,
-0.07861328125,
0.0732421875,
-0.072265625,
-0.0084228515625,
-0.06494140625,
0.052978515625,
0.0361328125,
0.017822265625,
-0.0169677734375,
-0.06787109375,
-0.0751953125,
-0.020263671875,
0.1337890625,
-0.0986328125,
-0.06103515625,
-0.003204345703125,
0.0142822... | 27,414 | 27414 | |
Need help with Matlab (Loops)
February 7th 2011, 01:43 PM
Kaktusse
Need help with Matlab (Loops)
I have 2 questions I need help with;
Question 1:
355 / 113 is a good approximation of pi. Let p and q be positive integer. Write a Matlab program to find the lowest value of q (and attached p) that meets t... | 5 | [
-0.1083984375,
0.032470703125,
-0.022705078125,
-0.04736328125,
-0.08544921875,
-0.033447265625,
0.0026092529296875,
0.08154296875,
0.00830078125,
0.01416015625,
0.01470947265625,
0.020751953125,
0.091796875,
-0.02978515625,
-0.03955078125,
-0.0478515625,
0.007781982421875,
-0.0585... | 27,415 | 27415 | |
the encyclopedic entry of Field_equation
A field equation is an equation in a physical theory that describes how a fundamental force (or a combination of such forces) interacts with matter. The four fundamental forces are the gravitational
force, the electromagnetic force, the strong force and the weak force.
Before t... | 4 | [
-0.045166015625,
-0.0030059814453125,
-0.01373291015625,
0.05126953125,
-0.01251220703125,
0.00439453125,
-0.04638671875,
0.034423828125,
0.036865234375,
0.06103515625,
-0.0206298828125,
0.041259765625,
-0.072265625,
0.0257568359375,
0.00885009765625,
-0.0115966796875,
-0.06030273437... | 27,416 | 27416 | |
Characterization of Dispersive Fluxes in Mesoscale Models Using LES of Flow over an Array of Cubes
International Journal of Atmospheric Sciences
Volume 2013 (2013), Article ID 898095, 10 pages
http://dx.doi.org/10.1155/2013/898095
Research Article
Characterization of Dispersive Fluxes in Mesoscale Models Using LES of... | 4 | [
0.06982421875,
0.0157470703125,
0.1259765625,
0.1220703125,
0.09619140625,
-0.111328125,
-0.01239013671875,
0.0296630859375,
0.041748046875,
0.018798828125,
-0.091796875,
-0.0927734375,
0.01708984375,
0.0361328125,
0.03662109375,
0.0020294189453125,
0.0296630859375,
-0.003784179687... | 27,417 | 27417 | |
Overview of Exponential Distribution Characteristics
What are the characteristics of the exponential distribution?
In reliability engineering the exponential distribution has been found to adequately model the failure rate of electronics during their useful life [1]. The probability density function (PDF) for the
exp... | 4 | [
-0.0771484375,
0.033935546875,
0.0015411376953125,
-0.0216064453125,
0.02783203125,
-0.0419921875,
0.0194091796875,
0.07568359375,
0.0361328125,
0.0179443359375,
0.055419921875,
-0.047607421875,
0.1396484375,
0.033203125,
0.04638671875,
-0.07763671875,
-0.01409912109375,
-0.1357421... | 27,418 | 27418 | |
Physics Forums - View Single Post - 2nd order nonlinear differential equation
Hi, Dickfore
but I don't think everything else is correct:
Like I said I think you mean u^(-1/2)*P ->P NOT u^(1/2)*P ->P
otherwise the equation doesn't have one term less.
so, dx/du=u^(1/2)*P^(-1)
then like you said dx/du contains an irrati... | 5 | [
-0.06884765625,
-0.02880859375,
0.06494140625,
0.03515625,
-0.0106201171875,
-0.01483154296875,
-0.053466796875,
-0.045166015625,
0.042724609375,
-0.0052490234375,
0.07568359375,
-0.03466796875,
-0.027587890625,
0.07177734375,
0.046630859375,
-0.04296875,
-0.03955078125,
0.0390625,... | 27,419 | 27419 | |
Volume integral
May 6th 2013, 01:11 AM #1
Volume integral
Let V be the region bounded by the planes x=0, y=0 and z=2, and the surface $z=x^2+y^2$ which is a paraboloid, lying in the quadrant $x \geq 0, y \geq 0$. Integrate $\iiint yz dxdydz$, choosing
the appropriate limits, first in the order dx dy dz and th... | 5 | [
0.01507568359375,
0.00183868408203125,
0.000354766845703125,
-0.09521484375,
0.0203857421875,
-0.07568359375,
-0.04443359375,
0.045654296875,
-0.04150390625,
0.00098419189453125,
-0.03564453125,
0.0712890625,
-0.0252685546875,
0.080078125,
-0.0299072265625,
0.0028228759765625,
-0.011... | 27,420 | 27420 | |
Help with curvature proof
February 24th 2007, 10:15 PM #1
Newbie
Joined
Feb 2007
Posts
3
Help with curvature proof
If gamma(t) = ( x(t), y(t) ) is a 2 dimensional curve, the curvature
k(t) at point gamma(t) is this:
k(t) = A/B
A = [ (dx/dy)*(d^2y/dt^2) - (d^2x/dt^2)*(dy/dt) ]
B = [ (dx... | 4 | [
-0.043212890625,
-0.03759765625,
0.04296875,
-0.0228271484375,
-0.0198974609375,
0.025390625,
0.0673828125,
0.02685546875,
0.0230712890625,
0.033935546875,
0.07421875,
0.0115966796875,
0.01397705078125,
0.0279541015625,
-0.01263427734375,
0.07958984375,
-0.045166015625,
0.008056640... | 27,421 | 27421 | |
F20's Conjugacy Classes
March 29th 2012, 09:38 AM #1
Member
Joined
Mar 2009
Posts
76
F20's Conjugacy Classes
The Frobenius Group F20 has 5 conjugacy classes.F = {a,b|a^5 - b^4 = 1, bab^-1 = a^2}.I think the conjugacy classes are [1],[a],[b],[b^2], and [b^3], but I'm having a hard time figuring out why
... | 5 | [
0.0162353515625,
0.0084228515625,
-0.05517578125,
-0.015869140625,
-0.05517578125,
0.0296630859375,
0.04345703125,
-0.095703125,
-0.054931640625,
-0.04150390625,
-0.0196533203125,
0.036865234375,
0.002899169921875,
-0.006195068359375,
0.0029754638671875,
0.09765625,
-0.06396484375,
... | 27,422 | 27422 | |
coordinate transformation double integral
October 10th 2010, 03:30 AM #1
Junior Member
Joined
Sep 2010
Posts
47
coordinate transformation double integral
Hey everyone, I am stuck on this question, I just can't get anymore done. Any help would be great.
Evaluate $\int_1^2 \int_{1/y}^y \ \sqrt{\frac{y... | 5 | [
0.0308837890625,
-0.04736328125,
-0.0186767578125,
-0.09619140625,
0.07373046875,
-0.07568359375,
-0.1005859375,
-0.0194091796875,
-0.0859375,
-0.001129150390625,
0.044677734375,
0.0791015625,
-0.060546875,
0.1181640625,
0.0908203125,
0.05126953125,
-0.039306640625,
0.0056457519531... | 27,423 | 27423 | |
does the sequence necessarily become decreasing??
December 28th 2011, 10:08 AM #1
does the sequence necessarily become decreasing??
Consider a sequence $(x_n)$ of real numbers with the following properties:
1) $x_n>0 \, \forall \, n$
2) $x_n<1 \, \forall \, n$
3) $x_{n+1}>x_n \, \forall \, n$
Def... | 5 | [
-0.11279296875,
-0.056884765625,
0.06201171875,
-0.03955078125,
-0.0162353515625,
-0.00026702880859375,
-0.055908203125,
0.00982666015625,
0.0595703125,
-0.0211181640625,
-0.03369140625,
0.07568359375,
-0.040771484375,
0.060546875,
0.072265625,
0.0341796875,
0.03466796875,
0.012939... | 27,424 | 27424 | |
the encyclopedic entry of rank-file
The
eight queens puzzle
is the problem of putting eight
chess queens
on an 8×8 chessboard such that none of them is able to capture any other using the standard chess queen's moves. The queens must be placed in such a way that no two queens would be able to attack
each other. Thu... | 4 | [
-0.01300048828125,
-0.045654296875,
-0.044677734375,
-0.07568359375,
-0.07861328125,
0.0654296875,
-0.042236328125,
0.055419921875,
-0.03662109375,
0.04248046875,
-0.0810546875,
0.068359375,
0.03857421875,
-0.01080322265625,
-0.154296875,
0.01708984375,
-0.02001953125,
0.0203857421... | 27,425 | 27425 | |
the encyclopedic entry of surface area
Surface area
is the measure of how much exposed
area
an object has. It is expressed in square units. If an object has flat
faces
, its surface area can be calculated by adding together the areas of its faces. Even objects with smooth surfaces, such as
spheres
, have surface... | 4 | [
0.06494140625,
-0.006439208984375,
-0.0031585693359375,
0.0028076171875,
0.0225830078125,
-0.076171875,
-0.030517578125,
0.10546875,
0.0150146484375,
-0.0033416748046875,
-0.11572265625,
0.015625,
0.0206298828125,
0.032470703125,
0.00567626953125,
-0.02978515625,
0.0133056640625,
0... | 27,426 | 27426 | |
Solve by substitution method
Hello i need help on this problem Solve by substitution x+y=6 y=x+2
As it's name suggests, when we solve by substitution, we substitute the expression for one variable in one equation for that variable in the other equation. from the second equation, we see that y =
x + 2, so we simply sub... | 4 | [
-0.03662109375,
-0.0157470703125,
-0.01312255859375,
0.03759765625,
0.05859375,
0.035888671875,
0.013671875,
-0.009765625,
-0.03515625,
-0.0274658203125,
0.07763671875,
0.00872802734375,
-0.0228271484375,
-0.06884765625,
0.045166015625,
0.06298828125,
-0.06982421875,
0.0576171875,
... | 27,427 | 27427 | |
Dynamical Behavior of a Stochastic Ratio-Dependent Predator-Prey System
Journal of Applied Mathematics
Volume 2012 (2012), Article ID 857134, 17 pages
http://dx.doi.org/10.1155/2012/857134
Research Article
Dynamical Behavior of a Stochastic Ratio-Dependent Predator-Prey System
School of Mathematical Science, Anhui U... | 5 | [
-0.048095703125,
-0.0245361328125,
-0.012939453125,
0.0732421875,
0.0279541015625,
0.0311279296875,
-0.013916015625,
-0.0341796875,
0.05419921875,
-0.0299072265625,
0.076171875,
0.0299072265625,
0.06982421875,
0.060546875,
-0.03759765625,
0.0181884765625,
0.03271484375,
-0.01391601... | 27,428 | 27428 | |
differential geometry?
December 23rd 2008, 08:54 AM #1
Junior Member
Joined
Feb 2006
From
United Kingdom
Posts
70
differential geometry?
hello there.
i was reading through some work on curves of pursuit and the author stated a certain equivalence without any comment as to where it came from.
... | 4 | [
-0.12060546875,
-0.0208740234375,
0.0712890625,
0.00537109375,
0.05712890625,
0.06298828125,
-0.0135498046875,
0.11572265625,
0.087890625,
-0.035888671875,
0.048583984375,
0.01226806640625,
0.01385498046875,
-0.03125,
0.003326416015625,
0.046142578125,
-0.0703125,
0.0159912109375,
... | 27,429 | 27429 | |
2D linear system help
November 17th 2012, 09:15 AM
darren86
2D linear system help
I have that given we have 2 distinct eigenvalues for a matrix describing the 2D linear system, then the general solution to the system is:
A(e^lambda1*t)U + B(e^lambda2*t)V, where A,B constants and U,V eigenvectors
How d... | 4 | [
-0.07470703125,
-0.0111083984375,
-0.0162353515625,
-0.01165771484375,
0.010009765625,
0.0556640625,
-0.0230712890625,
-0.12158203125,
-0.0128173828125,
-0.007476806640625,
0.060546875,
-0.041015625,
0.0025634765625,
0.0042724609375,
0.04345703125,
0.0274658203125,
-0.043212890625,
... | 27,430 | 27430 | |
Optimization; find my error
October 6th 2009, 08:19 PM
Tclack
Optimization; find my error
an offshore oil well located 5km from the shore. That point is 8km from the oil collection facility. It costs a million dollars per km to build piping in the water and 500,000 dollars per km to
build piping on the shore... | 5 | [
-0.02392578125,
0.10205078125,
0.0218505859375,
-0.00799560546875,
-0.06689453125,
-0.037109375,
-0.0693359375,
0.134765625,
-0.0194091796875,
0.0302734375,
0.013427734375,
-0.060302734375,
0.04638671875,
0.022216796875,
-0.0703125,
0.1474609375,
-0.042236328125,
-0.007720947265625... | 27,431 | 27431 | |
probability to create a binary bit pattern
February 24th 2010, 10:51 AM
problady
probability to create a binary bit pattern
Hello,
I did not anderstand this exercise.
May you PLEASE help me?
If we have created a binary bit pattern from 100 bits.
What is the probability to create another binar... | 5 | [
-0.04443359375,
0.064453125,
-0.0576171875,
-0.111328125,
-0.03564453125,
-0.026611328125,
0.06689453125,
0.0255126953125,
-0.052978515625,
0.0277099609375,
0.016845703125,
-0.045654296875,
0.059814453125,
-0.01129150390625,
0.02880859375,
0.0576171875,
-0.03173828125,
-0.080078125... | 27,432 | 27432 | |
Derivative of 1/X and root X
September 8th 2008, 03:28 PM #1
Member
Joined
May 2007
Posts
150
Derivative of 1/X and root X
can someone do these step by step please..im new at calculus and dont have my textbook with me
so far i have (A = delta)
root(x+Ax) - rootx / (x+Ax) - x and ive tried many ... | 5 | [
0.0140380859375,
-0.0299072265625,
0.025634765625,
-0.04150390625,
-0.0400390625,
-0.04638671875,
-0.030517578125,
-0.05615234375,
0.00567626953125,
0.107421875,
0.11572265625,
-0.03125,
-0.03173828125,
0.03955078125,
0.040771484375,
0.052490234375,
0.000457763671875,
0.01483154296... | 27,433 | 27433 | |
Math Help
February 26th 2008, 06:32 PM #1
Newbie
Joined
Jan 2008
Posts
24
interval
1) How do i write the answer in interval notation for (x-5)(x-11)>0 I got (5,infinity)U(11,infinity) webwork said it is incorrect too, so can anyone help me out what mistake i made for those two
problems?
2)how wi... | 4 | [
-0.03515625,
0.0615234375,
0.02978515625,
-0.07373046875,
-0.037109375,
0.0181884765625,
0.022705078125,
0.0255126953125,
-0.029052734375,
-0.03955078125,
0.0458984375,
0.006622314453125,
0.0732421875,
0.038330078125,
0.000576019287109375,
0.024169921875,
0.08251953125,
-0.05737304... | 27,434 | 27434 | |
Arithmetic and geometric sequences.
February 21st 2009, 09:07 AM
vvc531
Arithmetic and geometric sequences.
(1) The lengths of the sides of a right triangle are three consecutive terms of an increasing arithmetic sequence. Show that the lengths are in the ratio 3:4:5.
(2) If the pth and qth terms of an arit... | 4 | [
-0.08544921875,
0.0634765625,
0.0380859375,
-0.103515625,
-0.032958984375,
0.057861328125,
-0.043212890625,
-0.0400390625,
0.0272216796875,
0.0223388671875,
0.043212890625,
-0.004425048828125,
-0.02685546875,
0.049072265625,
0.052734375,
0.01263427734375,
-0.07275390625,
-0.0078735... | 27,435 | 27435 | |
Calculating a residue
January 5th 2009, 06:46 AM #1
Newbie
Joined
Jan 2009
Posts
3
Calculating a residue
does anyone know how to work out the residue of this at 0
i already have that
Res(f,0)= .5 lim (2*pi^3*z*cot(pi*z) -2*pi^2)cosec^2(pi*z)
(as z tends to 0)
But i cant work out the lim... | 4 | [
-0.0037841796875,
0.034912109375,
-0.042724609375,
0.087890625,
0.0498046875,
-0.0028839111328125,
0.01611328125,
0.022705078125,
0.0625,
0.020263671875,
-0.00238037109375,
-0.00518798828125,
-0.021484375,
0.04248046875,
0.016357421875,
-0.055908203125,
0.006378173828125,
0.0216064... | 27,436 | 27436 | |
Intergration....plz help
March 28th 2008, 07:10 AM #1
Newbie
Joined
Mar 2008
Posts
8
Intergration....plz help
Intergrate....
1. x^5-2x+5 diveded by x^3 dx
2. √x (1+√x)^3 dx
3. (1-3x)^9 dx
4. sin2xcosxdx
5. x + 2x^3 diveded by (x^4 + x^2)^3 dx
$(x^5-2x+5)/x^3 = x^2 - 2x^{-2} + 5x... | 4 | [
-0.0751953125,
-0.0245361328125,
0.050048828125,
0.044921875,
0.046630859375,
-0.037841796875,
0.035888671875,
-0.0184326171875,
-0.013671875,
0.01458740234375,
0.06982421875,
-0.037109375,
0.0283203125,
0.01068115234375,
-0.0537109375,
0.0211181640625,
0.004150390625,
0.0246582031... | 27,437 | 27437 | |
Statistics power function problem
April 9th 2010, 07:36 PM #1
Newbie
Joined
Apr 2010
Posts
4
Statistics power function problem
Here's the problem, I'm stuck:
Consider the distributions N(mu1, 400) and N(mu2, 225). Let theta = mu1-mu2 and x and y be the observed means of two independent random sample... | 5 | [
-0.03125,
0.05615234375,
0.020751953125,
-0.000743865966796875,
-0.0003147125244140625,
-0.0203857421875,
0.008056640625,
0.056640625,
0.043701171875,
-0.00555419921875,
0.06787109375,
-0.019287109375,
0.022705078125,
0.002044677734375,
-0.0157470703125,
0.048095703125,
-0.0209960937... | 27,438 | 27438 | |
Union of a set
September 3rd 2009, 12:51 PM #1
Super Member
Joined
Mar 2006
Posts
705
Thanks
2
Union of a set
This is from a proof in my book:
If $A = \{ x : f(x) > 0 \}$, define $A_n = \{ x : f(x) > \frac {1}{n} \}$, then $A = \bigcup ^ \infty _ 1 A_n$
Why is this true?
To show set eq... | 5 | [
-0.016357421875,
-0.01190185546875,
0.0537109375,
0.045166015625,
0.047119140625,
0.0498046875,
0.041748046875,
0.06982421875,
-0.004974365234375,
-0.00408935546875,
-0.054931640625,
-0.076171875,
0.06103515625,
-0.03564453125,
0.0024261474609375,
0.0007476806640625,
0.0179443359375,... | 27,439 | 27439 | |
Ring of integers
June 13th 2013, 12:13 AM
AlexanderW
Ring of integers
Hello,
let $K=\mathbb Q(\sqrt d)$ be a number field.
It is well known, that the ring of integers $\mathcal O_K$ of $K$ is given by $\mathbb Z[\xi]$ with
$\xi = \frac{1}{2}+\frac{1}{2}\sqrt d \ \ \quad \text{ if } \quad d \equiv ... | 4 | [
-0.014892578125,
0.020751953125,
-0.0189208984375,
-0.0595703125,
-0.017578125,
-0.09130859375,
0.042724609375,
0.00994873046875,
0.058349609375,
-0.08642578125,
-0.00007915496826171875,
-0.0019378662109375,
0.01141357421875,
-0.0546875,
-0.09619140625,
0.02490234375,
-0.004547119140... | 27,440 | 27440 | |
Algebra 2 problems.
July 29th 2009, 10:25 AM #1
Newbie
Joined
Jul 2009
Posts
24
Algebra 2 problems.
Solve each equation.
1. x - 1 = √(x+2) + 3
2. 2x^2 - 6x + 5 = 0
I'm not sure how to do these?
The 2nd equation is a quadratic. Use the formula to solve it.
$x - 1 = \sqrt{x+2} +... | 4 | [
-0.027099609375,
-0.0322265625,
0.06201171875,
0.03857421875,
0.01470947265625,
0.039794921875,
-0.037841796875,
0.00006341934204101562,
0.0111083984375,
0.010009765625,
0.0556640625,
0.00110626220703125,
0.052978515625,
0.06591796875,
-0.0174560546875,
0.044189453125,
-0.04321289062... | 27,441 | 27441 | |
solution set
July 30th 2012, 10:22 AM #1
solution set
can anyone tell me what solution i could use to find the solution set of:
1.) |7x| = 4 - x
2. (x^2 - 8x + 15) ( x^2 + 6x) <= 0
thank you
Re: solution set
1. If $x \ge 0$, then $|7x| = 7x$ and $7x = 4-x \Rightarrow x = \frac{1}{2}$.
I... | 4 | [
-0.044189453125,
0.03125,
0.027099609375,
0.01470947265625,
0.01190185546875,
0.0260009765625,
0.0137939453125,
0.059326171875,
-0.0291748046875,
-0.00188446044921875,
0.0390625,
-0.0286865234375,
0.0947265625,
0.0654296875,
0.01409912109375,
0.036865234375,
0.0673828125,
-0.057373... | 27,442 | 27442 | |
Analysis and Testing of MR Shear Transmission Driven by SMA Spring
Advances in Materials Science and Engineering
Volume 2013 (2013), Article ID 307207, 6 pages
http://dx.doi.org/10.1155/2013/307207
Research Article
Analysis and Testing of MR Shear Transmission Driven by SMA Spring
^1College of Mechanical Engineering... | 4 | [
-0.08544921875,
0.0101318359375,
-0.0159912109375,
-0.0150146484375,
-0.0294189453125,
0.04736328125,
-0.0400390625,
-0.0016632080078125,
0.01300048828125,
0.005706787109375,
-0.0311279296875,
0.060791015625,
0.09521484375,
0.04541015625,
-0.0654296875,
0.0035247802734375,
0.03613281... | 27,443 | 27443 | |
Infinite Products and a Tangent Fan
Based on the infinite geometric sum 1 = 1/2 + 1/4 + 1/8 +... we have
the trivial infinite product
1/2 1/4 1/8
a = a a a ....
for any number a. Of course, dividing each term in the geometric sum
by 2 gives the equivalent identity 1... | 4 | [
-0.08349609375,
0.054931640625,
0.037841796875,
-0.0059814453125,
-0.08349609375,
-0.032958984375,
0.0498046875,
0.047607421875,
0.08251953125,
-0.0517578125,
-0.0224609375,
-0.12890625,
0.020263671875,
0.1044921875,
-0.080078125,
0.0458984375,
0.0194091796875,
0.02783203125,
-0.... | 27,444 | 27444 | |
Two Pumps, One Tank
June 10th 2007, 04:04 AM #1
Banned
Joined
Jun 2007
From
Jackson, New Jersey
Posts
37
Two Pumps, One Tank
Two pumps of different sizes working together can empty a fuel tank is 5 hours. The larger pump can empty this tank in 4 hours less than the smaller one. If the larger one is o... | 4 | [
-0.030517578125,
0.064453125,
-0.004547119140625,
-0.0224609375,
0.007659912109375,
-0.0031280517578125,
-0.035400390625,
-0.0023651123046875,
-0.046142578125,
-0.039306640625,
-0.0859375,
0.0106201171875,
0.0771484375,
0.06884765625,
0.0262451171875,
0.11181640625,
-0.040283203125,
... | 27,445 | 27445 | |
An Extended Analytic Solution of Combined Refraction and
Diffraction of Long Waves Propagating over Circular Island
Journal of Applied Mathematics
Volume 2012 (2012), Article ID 742705, 13 pages
http://dx.doi.org/10.1155/2012/742705
Research Article
An Extended Analytic Solution of Combined Refraction and Diffractio... | 4 | [
-0.0654296875,
0.0380859375,
0.0751953125,
-0.0272216796875,
0.0458984375,
-0.11767578125,
-0.1396484375,
0.0120849609375,
-0.0654296875,
-0.00933837890625,
-0.034912109375,
0.0007476806640625,
-0.00144195556640625,
-0.022705078125,
0.0791015625,
0.05859375,
-0.12060546875,
-0.0639... | 27,446 | 27446 | |
Complexity, Randomness and Impossible Tasks
Examples such as "number of hairs on my head," " number of different states of a Rubik cube" and "speed of light in centimeters per decade," each specify, using fewer than the 20 words in the given
sentence, some particular whole number. The paradoxical nature of the task bec... | 4 | [
0.007659912109375,
-0.046142578125,
0.0137939453125,
0.0181884765625,
0.006988525390625,
0.0184326171875,
0.00188446044921875,
0.0034637451171875,
0.07958984375,
0.011962890625,
-0.000858306884765625,
-0.015869140625,
0.0498046875,
-0.01177978515625,
-0.01953125,
-0.06982421875,
-0.0... | 27,447 | 27447 | |
Fault Tolerant Ancillary Function of Power Converters in Distributed Generation Power System within a Microgrid Structure
Advances in Power Electronics
Volume 2013 (2013), Article ID 625130, 12 pages
http://dx.doi.org/10.1155/2013/625130
Research Article
Fault Tolerant Ancillary Function of Power Converters in Distri... | 4 | [
-0.0712890625,
0.061279296875,
-0.02197265625,
0.08056640625,
0.0238037109375,
-0.0103759765625,
-0.0830078125,
0.0693359375,
0.046142578125,
0.005126953125,
0.03564453125,
-0.0054931640625,
0.0810546875,
-0.06103515625,
-0.0133056640625,
0.07666015625,
-0.04248046875,
0.0336914062... | 27,448 | 27448 | |
Help me please
Quote:
Originally Posted by Chester
This is not a hard one but my book is so bad that I could not even get that out of it. Just multiply across.
Thanks,
Chester
are you asking how to change an equation like this $\frac{a}{b}=\frac{x}{y}$ into this: $ax=by$
Well, I'll tell... | 4 | [
-0.053955078125,
-0.0184326171875,
0.00518798828125,
0.0018768310546875,
-0.048095703125,
-0.010009765625,
0.019287109375,
-0.0155029296875,
-0.000545501708984375,
0.06982421875,
0.05224609375,
-0.0233154296875,
0.0032196044921875,
0.054443359375,
0.051025390625,
0.173828125,
-0.0480... | 27,449 | 27449 | |
Triangles
In a Triangle ABC, $|_A = 90 degree$ and D is the mid point of AC.The value of BC^2-BD^2 = AD^2.Prove.
If D is the midpoint of AC, then AD = DC....and AC = 2(AD) In right triangle ABC, (BC)^2 = (AB)^2 +(2(AD))^2 (BC)^2 = (AB)^2 +4(AD)^2 -----------(i) In right triangle ABD, (BD)^2 = (AB)^2 +(AD)^2
----------... | 4 | [
-0.047607421875,
0.09228515625,
-0.015625,
-0.04541015625,
-0.01153564453125,
0.01416015625,
0.0036468505859375,
0.046630859375,
0.061767578125,
-0.0206298828125,
0.09326171875,
-0.087890625,
0.01470947265625,
0.0361328125,
0.06494140625,
-0.0032196044921875,
-0.005035400390625,
-0... | 27,450 | 27450 | |
mean, median, mode and range
March 19th 2010, 07:12 AM #1
Super Member
mean, median, mode and range
Mode
The x value of 10 has the highest frequency (11). Therefore, the mode is 10.
Mean
To find the mean, a new set of values must be added to the frequency table. This set of values will be called "... | 4 | [
0.0228271484375,
0.00860595703125,
0.015869140625,
-0.064453125,
-0.08203125,
-0.0057373046875,
-0.01239013671875,
0.125,
-0.091796875,
0.01513671875,
-0.00096893310546875,
-0.04345703125,
0.059814453125,
-0.047119140625,
0.007415771484375,
0.0172119140625,
-0.01434326171875,
-0.02... | 27,451 | 27451 | |
Control of Hopf Bifurcation in Autonomous System Based on Washout Filter
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 482351, 16 pages
http://dx.doi.org/10.1155/2013/482351
Research Article
Control of Hopf Bifurcation in Autonomous System Based on Washout Filter
Department of Mathematics, Lanzhou Ji... | 5 | [
-0.04541015625,
0.022705078125,
0.0159912109375,
-0.04638671875,
-0.05126953125,
0.05859375,
0.0036773681640625,
0.002838134765625,
0.052490234375,
0.0245361328125,
-0.00128173828125,
0.08203125,
0.003692626953125,
-0.07861328125,
-0.07177734375,
0.11669921875,
-0.09912109375,
0.06... | 27,452 | 27452 | |
State domain and range in set builder notation, plz.
June 30th 2009, 07:24 PM #1
Newbie
Joined
Jun 2009
Posts
4
State domain and range in set builder notation, plz.
I'm confused by this. Please help.
State the domain and the range in set builder notation and interval notation. Domain and Range must ... | 4 | [
0.005523681640625,
-0.0172119140625,
-0.002716064453125,
-0.0498046875,
-0.046875,
0.005645751953125,
-0.01300048828125,
0.0400390625,
-0.072265625,
-0.0048828125,
-0.0008697509765625,
-0.11474609375,
0.06005859375,
0.0220947265625,
0.0859375,
0.022705078125,
-0.0194091796875,
-0.0... | 27,453 | 27453 | |
Help with linear transformation
April 6th 2013, 01:20 AM #1
Member
Joined
Nov 2012
From
israel
Posts
164
Thanks
2
Help with linear transformation
Hi guys.
I need to prove the following:
Let $V$ be a vector space over $\mathbb{R}$, such that $dim(V)>1$.
Let $\varphi:V\rightarrow V$ be... | 5 | [
-0.00811767578125,
-0.054443359375,
0.08642578125,
0.0859375,
0.004852294921875,
0.060302734375,
0.048828125,
-0.0498046875,
0.0284423828125,
-0.05419921875,
0.0634765625,
-0.006683349609375,
-0.09130859375,
0.08251953125,
-0.05419921875,
-0.01373291015625,
-0.0257568359375,
0.0279... | 27,454 | 27454 | |
[SOLVED] Independent events 2
February 9th 2009, 03:46 AM #1
Member
Joined
Mar 2008
Posts
204
[SOLVED] Independent events 2
Hai ...i confuse how to solve the problem as below.Is it the problem consider under independent event?
Question:
A die is thrown and the number from the set {1,2,3,4,5} is ... | 4 | [
-0.05712890625,
0.0167236328125,
0.04833984375,
-0.0615234375,
0.05126953125,
0.0703125,
0.10400390625,
0.0751953125,
0.0400390625,
0.039306640625,
0.000012278556823730469,
-0.0400390625,
0.018798828125,
0.00035858154296875,
-0.00653076171875,
-0.01275634765625,
-0.026611328125,
-0... | 27,455 | 27455 | |
Conditional Probability using the Law of Total Probability
October 6th 2010, 06:59 PM #1
Junior Member
Joined
Mar 2009
From
Madison, WI
Posts
42
Conditional Probability using the Law of Total Probability
From families with three children, a child is selected at random and found to be a girl. What is ... | 4 | [
-0.0439453125,
-0.017822265625,
-0.0166015625,
-0.00970458984375,
0.0390625,
0.006988525390625,
0.083984375,
-0.0213623046875,
0.026611328125,
0.0546875,
0.056640625,
-0.021484375,
0.09326171875,
-0.035400390625,
0.0859375,
0.130859375,
0.043212890625,
-0.0150146484375,
-0.089355... | 27,456 | 27456 | |
Context Free Languages
Context Free Languages
Moving on to the next tier of the Chomsky heirarchy, we hit the context free languages. CFLs are amazingly useful buggers: virtually every compiler, and in fact virtually every large piece of
application software uses CFLs somewhere, and the way that we use them is actual... | 4 | [
-0.060546875,
-0.08740234375,
-0.00179290771484375,
0.019775390625,
0.0216064453125,
0.010009765625,
-0.0035400390625,
0.0322265625,
0.09375,
-0.00183868408203125,
-0.0009918212890625,
-0.058837890625,
-0.00811767578125,
0.01373291015625,
0.0478515625,
-0.0157470703125,
-0.0544433593... | 27,457 | 27457 | |
Contest Question
April 21st 2012, 05:34 PM #1
Newbie
Joined
Apr 2012
From
Canada
Posts
3
Contest Question
Taken from the final question in a recently completed math contest:
The positive divisors of 21 are 1,3,7, and 21. Let S(n) be the sum of the positive divisors of the positive integer n. For... | 5 | [
-0.046142578125,
0.0615234375,
-0.040771484375,
-0.03173828125,
0.035888671875,
0.10546875,
0.087890625,
0.07080078125,
-0.0206298828125,
0.0189208984375,
-0.0260009765625,
0.035888671875,
0.047119140625,
0.04248046875,
0.0301513671875,
-0.041748046875,
-0.03564453125,
-0.019409179... | 27,458 | 27458 | |
Approximate Analytical Solution for One-Dimensional Solidification Problem of a Finite Superheating Phase Change Material Including the Effects of Wall and Thermal Contact Resistances
Journal of Applied Mathematics
Volume 2012 (2012), Article ID 174604, 20 pages
http://dx.doi.org/10.1155/2012/174604
Research Article
... | 5 | [
-0.1083984375,
0.080078125,
0.05859375,
0.0308837890625,
0.029296875,
-0.06005859375,
-0.0859375,
0.04248046875,
-0.048095703125,
0.0133056640625,
-0.0771484375,
-0.0458984375,
0.0634765625,
-0.0277099609375,
0.00102996826171875,
-0.068359375,
-0.0038604736328125,
-0.053955078125,
... | 27,459 | 27459 | |
R Tutorial Series: Summary and Descriptive Statistics
November 1, 2009
By John M. Quick
Summary (or descriptive) statistics are the first figures used to represent nearly every dataset. They also form the foundation for much more complicated computations and analyses. Thus, in spite of
being composed of simple metho... | 4 | [
0.03564453125,
0.057861328125,
-0.037109375,
0.0257568359375,
-0.0191650390625,
0.006256103515625,
-0.0299072265625,
0.10302734375,
-0.052001953125,
0.08056640625,
0.047119140625,
-0.048583984375,
0.0263671875,
0.008544921875,
0.038330078125,
-0.0673828125,
-0.04052734375,
-0.01513... | 27,460 | 27460 | |
the encyclopedic entry of coarsen
In
mathematics
,
Sierpiński space
(or the
connected two-point set
) is a
finite topological space
with two points, only one of which is
closed
. It is the smallest example of a
topological space
which is neither
trivial
nor
discrete
. It is named after
Wacław Sierpińsk... | 4 | [
-0.0240478515625,
-0.09765625,
0.0167236328125,
0.0546875,
0.0054931640625,
-0.023681640625,
0.09130859375,
-0.0137939453125,
0.11328125,
-0.04736328125,
0.006988525390625,
-0.048583984375,
-0.00341796875,
0.01031494140625,
-0.03271484375,
-0.04296875,
-0.00848388671875,
-0.0908203... | 27,461 | 27461 | |
Construct a function satisfied some conditions
October 18th 2009, 06:49 AM #1
Junior Member
Joined
Sep 2007
Posts
66
Construct a function $f(x)\in C^{\infty}(-\infty,+\infty)$
that satisfy $f^{(2n+1)}(0) = n$ and $f^{(2n)}(0) = 0$,for all $n\geq0$.
Furthermore,show that there are infinity $f(x)$sa... | 4 | [
-0.078125,
-0.01025390625,
0.00799560546875,
0.06640625,
0.032470703125,
0.08984375,
-0.025390625,
0.0230712890625,
-0.0208740234375,
-0.0030975341796875,
0.0947265625,
-0.10498046875,
-0.057373046875,
0.029296875,
-0.06640625,
-0.0712890625,
0.00946044921875,
-0.0693359375,
0.05... | 27,462 | 27462 | |
Trig equation: sin(5x)+sin(x)=0
June 2nd 2012, 11:44 PM #1
Junior Member
Joined
Feb 2009
Posts
31
Trig equation: sin(5x)+sin(x)=0
Question: Solve $\displaystyle sin(5x)+sin(x)=0$ for $0\leq x < \pi$.
I know ways to solve this by expanding sin(5x) but I'm wondering if the method I'm attempting below ... | 5 | [
-0.1083984375,
0.0166015625,
0.05712890625,
0.01251220703125,
-0.0380859375,
0.041259765625,
0.02783203125,
-0.019775390625,
-0.00183868408203125,
0.0029296875,
0.07080078125,
-0.08154296875,
0.034423828125,
0.013671875,
0.005096435546875,
0.0030670166015625,
-0.003662109375,
0.037... | 27,463 | 27463 | |
Equation of motion help please.
December 28th 2009, 01:13 PM
1LISTEN
Equation of motion help please.
A rock is thrown horizontally from a cliff with a speed of 15 m/s. It falls half the height of the cliff in the last three seconds of its fall. What is the total fall time? (use g = 9.81 m/s^2)
This is my at... | 4 | [
0.006866455078125,
-0.0147705078125,
0.087890625,
-0.0213623046875,
0.052978515625,
-0.0084228515625,
-0.0849609375,
0.09765625,
0.003662109375,
0.041015625,
0.01275634765625,
-0.053466796875,
0.0012054443359375,
0.0595703125,
-0.03466796875,
0.052978515625,
0.057861328125,
0.04809... | 27,464 | 27464 | |
Chairs Around The Table
Students investigate the number of chairs that can be placed around an arrangement of square tables. Three related problems in this lesson yield different linear relationships for students to
discover.
Using a context of chairs around square tables, students will be exposed to three different ... | 4 | [
0.09521484375,
0.04345703125,
0.006927490234375,
-0.0576171875,
-0.0546875,
0.0206298828125,
-0.016845703125,
-0.054931640625,
0.01202392578125,
0.04248046875,
0.07568359375,
-0.030029296875,
0.08984375,
0.087890625,
0.038330078125,
-0.0224609375,
0.007110595703125,
0.047119140625,... | 27,465 | 27465 | |
hard projectile motion problem
May 23rd 2008, 10:38 PM
hkdrmark
hard projectile motion problem
9. A boy throws a ball with speed V m/s at an angle of 45 degrees to the horizontal.
a) Derive expressions for the horizontal and vertical components of the displacement of the ball from the point of projection
... | 4 | [
-0.029052734375,
0.154296875,
0.038818359375,
-0.0966796875,
0.038818359375,
0.064453125,
-0.00102996826171875,
0.064453125,
-0.031494140625,
0.054931640625,
0.068359375,
-0.0206298828125,
-0.0191650390625,
0.099609375,
0.043701171875,
0.050048828125,
-0.018310546875,
0.08349609375... | 27,466 | 27466 | |
Finding X-Intercepts
September 28th 2011, 10:22 AM #1
Junior Member
Joined
Apr 2011
From
United States
Posts
32
Hey
Please help me understand how to solve the problem below. This one question stopped me from getting a hundred on the test! Thanks
Problem:
Given the function f(x) = x^2 + ... | 4 | [
0.0556640625,
-0.03857421875,
-0.0169677734375,
-0.0218505859375,
0.11279296875,
0.029052734375,
0.0030517578125,
0.037109375,
-0.09423828125,
0.04638671875,
0.0791015625,
-0.0791015625,
-0.00445556640625,
0.036376953125,
0.02587890625,
0.033203125,
-0.0283203125,
-0.0625,
0.0556... | 27,467 | 27467 | |
Idempotent Elements of the Endomorphism Semiring of a Finite Chain
RETRACTED
This article has been retracted as it is essentially identical in title and technical content with the published article “Idempotent Elements of the Endomorphism Semiring of a Finite Chain,” by Ivan
Trendafilov and Dimitrinka Vladeva, publishe... | 4 | [
-0.0140380859375,
0.138671875,
0.028076171875,
0.04638671875,
0.00335693359375,
-0.0017242431640625,
0.003204345703125,
-0.003662109375,
-0.0196533203125,
-0.06201171875,
-0.0439453125,
0.029296875,
0.019775390625,
-0.06787109375,
-0.050537109375,
0.0732421875,
-0.1005859375,
0.042... | 27,468 | 27468 | |
Subclasses of Starlike Functions Associated with Fractional
Journal of Complex Analysis
Volume 2013 (2013), Article ID 572718, 8 pages
http://dx.doi.org/10.1155/2013/572718
Research Article
Subclasses of Starlike Functions Associated with Fractional -Calculus Operators
^1School of Advanced Sciences, VIT University,... | 5 | [
-0.0654296875,
-0.0069580078125,
0.07275390625,
0.09033203125,
-0.0284423828125,
-0.007568359375,
-0.0284423828125,
-0.0255126953125,
0.0517578125,
0.004150390625,
-0.02490234375,
-0.01220703125,
-0.0028228759765625,
0.035888671875,
-0.045166015625,
-0.1005859375,
0.0390625,
-0.010... | 27,469 | 27469 | |
On the Spectral Asymptotics of Operators on Manifolds with Ends
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 909782, 21 pages
http://dx.doi.org/10.1155/2013/909782
Research Article
On the Spectral Asymptotics of Operators on Manifolds with Ends
Dipartimento di Matematica, Università degli Studi di To... | 4 | [
0.028564453125,
0.018310546875,
0.047119140625,
0.0242919921875,
-0.0400390625,
0.064453125,
0.0458984375,
0.00159454345703125,
0.05322265625,
-0.022705078125,
0.09423828125,
-0.05224609375,
-0.02001953125,
0.004608154296875,
-0.004730224609375,
-0.0458984375,
-0.03271484375,
-0.00... | 27,470 | 27470 | |
upper bound turning into supremum
November 16th 2010, 08:37 PM #1
MHF Contributor
Joined
Nov 2008
Posts
1,401
upper bound turning into supremum
i proved that sin (1/x)<1/x
prove that sup{xsin (1/x)|x>0}=1
if we say that A={xsin (1/x)|x>0}
xsin (1/x)<x(1/x)=1
so one is upper bound
... | 4 | [
-0.08056640625,
-0.0001811981201171875,
0.0400390625,
-0.005889892578125,
0.02880859375,
-0.0159912109375,
-0.007232666015625,
0.08349609375,
-0.02880859375,
-0.003753662109375,
-0.0179443359375,
0.00341796875,
0.09619140625,
0.047119140625,
0.00188446044921875,
-0.04736328125,
0.080... | 27,471 | 27471 | |
DE qn-forming an equaltion with 3 variables
November 6th 2012, 07:57 PM #1
Newbie
Joined
Nov 2012
From
US
Posts
4
DE qn-forming an equaltion with 3 variables
the growth of an insect is studied.The rate of death is proportional to the number of insects,x, (in thousands)at any time, t days after the st... | 5 | [
-0.07177734375,
0.001617431640625,
0.060302734375,
-0.0284423828125,
-0.041259765625,
0.052734375,
-0.0169677734375,
-0.00160980224609375,
0.0272216796875,
0.146484375,
0.181640625,
-0.068359375,
-0.0035247802734375,
0.034912109375,
-0.0167236328125,
0.07861328125,
-0.033203125,
-0... | 27,472 | 27472 | |
A Regularized Gradient Projection Method for the Minimization Problem
Journal of Applied Mathematics
Volume 2012 (2012), Article ID 259813, 9 pages
http://dx.doi.org/10.1155/2012/259813
Research Article
A Regularized Gradient Projection Method for the Minimization Problem
^1Department of Mathematics, Tianjin Polytec... | 5 | [
-0.054931640625,
0.0361328125,
-0.0140380859375,
-0.0595703125,
0.038330078125,
0.06396484375,
0.031494140625,
-0.032470703125,
-0.01068115234375,
-0.0145263671875,
-0.0546875,
0.06787109375,
0.10888671875,
0.01055908203125,
-0.1455078125,
0.003082275390625,
-0.01251220703125,
0.05... | 27,473 | 27473 | |
URGENT HELP WITH CALCULATING PRESENT VALUES
September 4th 2008, 02:20 PM #1
Newbie
Joined
Sep 2008
Posts
2
URGENT HELP WITH CALCULATING PRESENT VALUES
A five-year annuity of ten $10000 semi-annual payments will begin 9 years from now, with the first payment coming 9,5 years from now. If the discount rate... | 5 | [
0.01116943359375,
0.076171875,
0.0030517578125,
-0.061279296875,
0.038818359375,
0.018310546875,
-0.00274658203125,
0.056396484375,
-0.0615234375,
0.0537109375,
0.031982421875,
-0.059814453125,
0.01300048828125,
0.064453125,
0.004150390625,
-0.000028133392333984375,
-0.040771484375,
... | 27,474 | 27474 | |
A New Improved Parsimonious Multivariate Markov Chain Model
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 902972, 10 pages
http://dx.doi.org/10.1155/2013/902972
Research Article
A New Improved Parsimonious Multivariate Markov Chain Model
School of Mathematical Sciences, University of Electronic Scien... | 4 | [
-0.08349609375,
-0.109375,
0.0247802734375,
-0.04052734375,
-0.0166015625,
-0.0478515625,
-0.0101318359375,
-0.055908203125,
0.0908203125,
0.0079345703125,
0.02294921875,
0.0224609375,
0.10595703125,
0.0380859375,
-0.01318359375,
0.01385498046875,
-0.01513671875,
-0.040771484375,
... | 27,475 | 27475 | |
The Foundations of Probability with Black Swans
Journal of Probability and Statistics
Volume 2010 (2010), Article ID 838240, 11 pages
http://dx.doi.org/10.1155/2010/838240
Research Article
The Foundations of Probability with Black Swans
Departments of Economics and Mathematical Statistics, Columbia University, 335 R... | 4 | [
-0.0291748046875,
-0.04345703125,
0.06103515625,
0.09765625,
0.1083984375,
0.0216064453125,
0.005889892578125,
0.039306640625,
0.09765625,
0.0576171875,
-0.0169677734375,
-0.06396484375,
0.0537109375,
0.013427734375,
-0.06494140625,
0.0250244140625,
-0.0634765625,
-0.023681640625,
... | 27,476 | 27476 | |
Sum or Difference between any powers.
February 3rd 2011, 06:12 PM #1
Member
Joined
May 2009
Posts
109
Sum or Difference between any powers.
I understand the difference between two squares but I don't understand this.
$<br /> a^5 - b^5 = (a - b)(a^4 + a^3b + a^2b^2 + ab^3 + b^4)<br />$
I think y... | 4 | [
-0.01385498046875,
0.029052734375,
-0.0244140625,
0.05078125,
-0.030517578125,
0.00127410888671875,
-0.0279541015625,
-0.04150390625,
0.031982421875,
-0.06298828125,
-0.048583984375,
0.000247955322265625,
0.0830078125,
-0.0067138671875,
0.040283203125,
0.12060546875,
0.03173828125,
... | 27,477 | 27477 | |
PS OG Question: A big fight at home on this issue
Author Message
TAGS:
PS OG Question: A big fight at home on this issue [#permalink] 28 Jan 2006, 10:20
00:00
... | 4 | [
0.0034332275390625,
0.1103515625,
-0.014404296875,
0.03271484375,
0.03955078125,
0.059814453125,
0.0291748046875,
0.036376953125,
0.016845703125,
0.056396484375,
-0.055908203125,
0.000606536865234375,
-0.01177978515625,
0.00396728515625,
-0.00921630859375,
-0.00640869140625,
-0.02087... | 27,478 | 27478 | |
Proving Rings (sorry for the Tex error)
Perhaps you mean to prove that if $R$ is a conmutative ring, $I\subset R$ ideal of $R$, then $R/I$ is a commutative ring with the standard operations $(x+I)+(y+I)=(x+y)+I$ and $(x+I)(y+I)=xy+I$ . If
so, start proving that the sum is well defined that is, if $x+I=x'+I$ and $y+I=y'... | 4 | [
-0.06787109375,
0.0439453125,
-0.04296875,
-0.03515625,
0.007720947265625,
-0.06591796875,
0.10009765625,
-0.04443359375,
-0.0517578125,
-0.07275390625,
0.01251220703125,
-0.007171630859375,
0.036865234375,
-0.0308837890625,
-0.0042724609375,
0.0235595703125,
0.037353515625,
0.0588... | 27,479 | 27479 | |
DISCRETE STRUCTURES University Question paper
DISCRETE STRUCTURES QUESTION PAPER
Time: 3 Hours June 2006 Max. Marks: 100
NOTE: There are 9 Questions in all.
· Question 1 is compulsory and carries 20 marks. Answer to Q. 1. must be written in the space provided for it in the answer book supplied and nowhere else.
· O... | 4 | [
-0.03515625,
0.06689453125,
0.01953125,
-0.0279541015625,
0.028564453125,
0.04443359375,
0.036865234375,
0.01385498046875,
0.0032958984375,
0.10400390625,
-0.02197265625,
-0.04443359375,
0.0751953125,
0.020751953125,
0.056884765625,
0.07861328125,
-0.01611328125,
-0.044189453125,
... | 27,480 | 27480 | |
Homework Help
Posted by Anonymous on Monday, October 15, 2012 at 12:04pm.
Find the dervatives:
1. f(x)=(3x+1)e^x^2
2. y = e^(sin x) ln(x)
3. f(x)=(x^(2)+x)^23
4. f(x)=sin(2x)/cosx
5. square root of x/(3x+1)
6. f(x)=sin^4(3x=1)-sin(3x+1)
7. x+y=cos(xy)
The answers I got:
1. 6x^(2)e^(x^2)+2xe^(x^2)+3e^(x^2)
2.... | 5 | [
-0.0322265625,
0.033935546875,
-0.026611328125,
0.04833984375,
0.04248046875,
0.036865234375,
0.0205078125,
-0.033203125,
-0.03515625,
0.002960205078125,
0.130859375,
-0.09619140625,
-0.031005859375,
-0.005035400390625,
-0.0076904296875,
-0.0201416015625,
-0.140625,
-0.007263183593... | 27,481 | 27481 | |
Real Analysis - Sequences
January 20th 2009, 01:18 PM
ajj86
Real Analysis - Sequences
Hey, I'm pretty sure I already solved part a. of this question, but decided to put it up just in case. Any help would be greatly appreciated. Thanks.
Let fn(x) = nx / (1 + nx^2)
a. Find the pointwise limit of (fn) for... | 5 | [
0.00933837890625,
0.051025390625,
-0.01373291015625,
-0.00897216796875,
-0.003875732421875,
0.0277099609375,
0.0888671875,
-0.00128173828125,
-0.0111083984375,
-0.037841796875,
0.0859375,
0.004302978515625,
0.037353515625,
0.0028839111328125,
-0.0546875,
-0.0693359375,
-0.02038574218... | 27,482 | 27482 | |
Derivation Of Multiple Integrals Depending On A Parameter
June 4th 2006, 05:51 AM #1
lion1977
Guest
Derivation Of Multiple Integrals Depending On A Parameter
Please, I need a help to derive the formula you can find in the attached file
Many many thanks for the help
lion1977
A real mess!!!
Let's... | 4 | [
-0.08837890625,
-0.05712890625,
0.09228515625,
-0.052734375,
0.02099609375,
-0.01300048828125,
-0.0208740234375,
0.02685546875,
-0.01336669921875,
0.05908203125,
0.040283203125,
0.0159912109375,
0.0230712890625,
-0.04248046875,
0.01470947265625,
-0.00151824951171875,
-0.1083984375,
... | 27,483 | 27483 | |
anti deriviative
March 26th 2011, 02:58 PM #1
Junior Member
Joined
Nov 2010
From
NY
Posts
64
anti deriviative
the question is :
anti deriviative of : 4/(1+4t^2)
How do I figure out questions like this? I really cant see this as product or chain rule so kind of stumped.
Product and chain ... | 5 | [
0.01104736328125,
0.03955078125,
0.1279296875,
0.06298828125,
0.020751953125,
-0.064453125,
0.01611328125,
0.09912109375,
-0.028076171875,
0.02490234375,
0.07763671875,
-0.07470703125,
-0.011474609375,
0.06787109375,
-0.032470703125,
-0.0084228515625,
0.005828857421875,
0.018920898... | 27,484 | 27484 | |
Asymptotic Series of General Symbol of Pseudo-Differential Operator Involving Fractional Fourier Transform
ISRN Mathematical Analysis
Volume 2013 (2013), Article ID 501382, 6 pages
http://dx.doi.org/10.1155/2013/501382
Research Article
Asymptotic Series of General Symbol of Pseudo-Differential Operator Involving Frac... | 5 | [
-0.05419921875,
-0.033935546875,
0.040771484375,
0.04248046875,
0.0137939453125,
0.048095703125,
-0.0167236328125,
-0.0026397705078125,
0.072265625,
-0.003936767578125,
0.058837890625,
0.013671875,
-0.020263671875,
-0.01513671875,
-0.0201416015625,
-0.080078125,
0.0054931640625,
-0... | 27,485 | 27485 | |
a theorem about one to one functions
September 17th 2011, 07:56 PM #1
Member
Joined
Oct 2010
From
Mumbai, India
Posts
203
a theorem about one to one functions
hi
I am trying to prove the following theorem.
Suppose A,B,C are sets and $f:B\longrightarrow C$
Suppose that $Aeq \varnothing$... | 4 | [
-0.049072265625,
0.0189208984375,
0.0274658203125,
-0.0074462890625,
-0.0162353515625,
0.0888671875,
0.103515625,
-0.025146484375,
-0.0220947265625,
-0.0196533203125,
-0.057861328125,
-0.07421875,
0.07421875,
-0.042724609375,
0.06787109375,
0.02734375,
0.03955078125,
-0.01135253906... | 27,486 | 27486 | |
The Optimization of Solutions of the Dynamic Systems with Random Structure
Abstract and Applied Analysis
Volume 2011 (2011), Article ID 486714, 18 pages
http://dx.doi.org/10.1155/2011/486714
Research Article
The Optimization of Solutions of the Dynamic Systems with Random Structure
^1University of Žilina, Žilina, Sl... | 5 | [
-0.072265625,
0.0576171875,
0.00311279296875,
0.0074462890625,
-0.004150390625,
0.00159454345703125,
0.02294921875,
0.0126953125,
0.0225830078125,
0.0303955078125,
0.00653076171875,
0.07080078125,
0.056640625,
-0.04443359375,
-0.10595703125,
0.0311279296875,
-0.0289306640625,
0.031... | 27,487 | 27487 | |
Area and limit of the shaded region...?
September 15th 2008, 08:21 PM
damselfly
Area and limit of the shaded region...?
I'm not sure if I did this is right, but here's the question:
http://i3.photobucket.com/albums/y62...calculus-1.jpg
Consider the shaded region outside the sector of a circle of radius 1... | 5 | [
-0.05322265625,
0.06494140625,
0.00958251953125,
-0.07861328125,
0.0211181640625,
-0.003509521484375,
0.025390625,
0.060302734375,
0.0091552734375,
0.078125,
0.0693359375,
-0.03662109375,
0.059814453125,
0.09765625,
0.031494140625,
0.031494140625,
-0.0537109375,
-0.08642578125,
-... | 27,488 | 27488 | |
Proof about Partitions of a set
March 23rd 2010, 03:57 PM #1
Junior Member
Joined
Feb 2010
Posts
42
Proof about Partitions of a set
Suppose that R1 and R2 are equivalence relations on a set A. Let P1 and P2 be the partitions that correspond to R1 and R2, respectively. Show that R1 is a subset of R2 if an... | 4 | [
-0.10302734375,
-0.020751953125,
0.0732421875,
0.00061798095703125,
0.07568359375,
-0.01397705078125,
0.11474609375,
0.04296875,
-0.00537109375,
-0.030029296875,
-0.10791015625,
-0.0135498046875,
0.033447265625,
0.0267333984375,
0.01025390625,
-0.03173828125,
0.03662109375,
0.04492... | 27,489 | 27489 | |
Solving quadratic equations
This stuff is kicking my butt!!! 1. 6x^2-7x-5=0 Complete the square 2.x^2-4x-18=0 3.4x^2-12x-3=0 Thanks for the help guys
Please do not double post the same question, it is against the rules. 1. 6x^2 - 7x - 5 = 0 You can use the quadratic formula on this and have it done in one step. Use th... | 4 | [
-0.001953125,
0.0072021484375,
0.06396484375,
0.041015625,
-0.01141357421875,
0.038818359375,
-0.0031280517578125,
-0.0027618408203125,
-0.019775390625,
0.056884765625,
0.08642578125,
-0.0286865234375,
0.036865234375,
0.0693359375,
-0.02099609375,
0.050537109375,
-0.02978515625,
0.... | 27,490 | 27490 | |
Faster Than Light Neutrinos And Relativity
There is a certain amount of confusion on the relationship between Einstein's Theory of Relativity and the recent experimental results that seem to point towards
neutrinos
that are faster than light by an amount of about 7 km/s. So let me try to clarify things by answering t... | 4 | [
-0.05126953125,
0.04248046875,
0.0849609375,
0.11376953125,
0.000354766845703125,
0.037353515625,
-0.037353515625,
0.04736328125,
0.003631591796875,
-0.03515625,
0.051025390625,
-0.04150390625,
-0.1494140625,
0.060302734375,
0.0216064453125,
-0.0079345703125,
0.134765625,
0.0976562... | 27,491 | 27491 | |
Cauchy Schwaz inequality
April 4th 2010, 05:40 AM #1
Member
Joined
Feb 2008
Posts
184
Cauchy Schwaz inequality
$0 \leq \left\| u-\delta v \right\|^2<br /> = \langle u-\delta v,u-\delta v \rangle = \langle u,u \rangle - \bar{\delta} \langle u,v \rangle - \delta \langle v,u \rangle + |\delta|^2 \langle v,v... | 4 | [
-0.0218505859375,
0.041748046875,
0.045654296875,
-0.08447265625,
-0.06640625,
0.0130615234375,
-0.006378173828125,
-0.02490234375,
-0.1396484375,
-0.01373291015625,
-0.0081787109375,
-0.034423828125,
0.0294189453125,
-0.053955078125,
-0.02783203125,
0.0205078125,
0.04931640625,
-0... | 27,492 | 27492 | |
The Compensation Method of Vehicle Magnetic Interference for the Magnetic Gradiometer
Advances in Mathematical Physics
Volume 2013 (2013), Article ID 523164, 5 pages
http://dx.doi.org/10.1155/2013/523164
Research Article
The Compensation Method of Vehicle Magnetic Interference for the Magnetic Gradiometer
^1Departme... | 4 | [
-0.061767578125,
0.0732421875,
-0.032958984375,
-0.025634765625,
-0.0003490447998046875,
-0.017578125,
-0.0252685546875,
-0.02587890625,
-0.0064697265625,
-0.04150390625,
0.056640625,
0.1103515625,
0.07958984375,
-0.0927734375,
-0.046142578125,
0.03271484375,
0.01416015625,
0.00830... | 27,493 | 27493 | |
Prove that continuous compounding yields a higher return than any other frequency
February 23rd 2010, 04:05 AM #1
Prove that continuous compounding yields a higher return than any other frequency
Let $0 < r \in \mathbb{R}$ and $n \in \mathbb{N}$. Suppose that we compound at a rate of $r$ at a frequency of $n$ tim... | 4 | [
0.04833984375,
0.040283203125,
-0.0439453125,
0.056396484375,
0.00665283203125,
-0.04052734375,
0.0032958984375,
0.01165771484375,
0.00933837890625,
0.0576171875,
-0.04443359375,
0.02978515625,
0.0045166015625,
0.055419921875,
0.1005859375,
-0.06640625,
0.0120849609375,
0.010437011... | 27,494 | 27494 | |
the encyclopedic entry of geometrical optics
As a mathematical study,
geometrical optics
emerges as a short-
wavelength
limit for solutions to
hyperbolic partial differential equations
. For a less mathematical introduction, please see
optics
. In this short wavelength limit, it is possible to approximate the s... | 4 | [
-0.0751953125,
-0.028564453125,
0.1259765625,
-0.0191650390625,
-0.044677734375,
-0.0269775390625,
-0.024169921875,
-0.00994873046875,
-0.01446533203125,
0.072265625,
0.04345703125,
0.044677734375,
-0.005645751953125,
-0.041015625,
0.055419921875,
-0.041259765625,
-0.00653076171875,
... | 27,495 | 27495 | |
Adaptive State-Feedback Stabilization for Stochastic Nonholonomic Mobile Robots with Unknown Parameters
Discrete Dynamics in Nature and Society
Volume 2013 (2013), Article ID 808249, 9 pages
http://dx.doi.org/10.1155/2013/808249
Research Article
Adaptive State-Feedback Stabilization for Stochastic Nonholonomic Mobile... | 4 | [
0.0341796875,
-0.00482177734375,
-0.024169921875,
-0.013916015625,
-0.080078125,
-0.017578125,
-0.0400390625,
-0.0615234375,
-0.0091552734375,
0.0296630859375,
0.06591796875,
0.05712890625,
0.0703125,
-0.083984375,
-0.1064453125,
0.15234375,
0.048095703125,
0.03466796875,
-0.0341... | 27,496 | 27496 | |
Mechanism Simulation and Optimal Design of Five-Link Bionic Joint Driven by Two Antagonistic Pneumatic Muscles
Advances in Mechanical Engineering
Volume 2013 (2013), Article ID 824085, 11 pages
http://dx.doi.org/10.1155/2013/824085
Research Article
Mechanism Simulation and Optimal Design of Five-Link Bionic Joint Dri... | 4 | [
-0.06787109375,
0.036376953125,
0.034423828125,
-0.057373046875,
-0.08203125,
-0.01483154296875,
-0.0206298828125,
0.09228515625,
0.0196533203125,
0.06982421875,
0.02490234375,
0.08544921875,
0.095703125,
0.0517578125,
-0.080078125,
0.0654296875,
-0.06005859375,
0.08837890625,
-0... | 27,497 | 27497 | |
Use of Tikhonov Regularization to Improve the Accuracy of Position Estimates in Inertial Navigation
International Journal of Navigation and Observation
Volume 2011 (2011), Article ID 450269, 10 pages
http://dx.doi.org/10.1155/2011/450269
Research Article
Use of Tikhonov Regularization to Improve the Accuracy of Posit... | 4 | [
-0.031494140625,
0.06982421875,
0.052001953125,
-0.05126953125,
0.0303955078125,
-0.010009765625,
-0.053955078125,
0.04736328125,
-0.07470703125,
0.06787109375,
0.051513671875,
0.02001953125,
0.0703125,
-0.049560546875,
-0.0732421875,
-0.00390625,
-0.0184326171875,
-0.0157470703125... | 27,498 | 27498 | |
independent random variables
November 15th 2009, 01:42 PM #1
independent random variables
Suppose that $A, B, C,$ are independent random variables, each being uniformly distributed over $(0,1).$
(a) What is the joint cumulative distribution function of $A, B, C?$
(b) What is the probability that all the ... | 5 | [
-0.00799560546875,
0.032958984375,
0.001953125,
0.00732421875,
-0.034912109375,
0.0084228515625,
0.0238037109375,
-0.0286865234375,
0.004425048828125,
-0.00439453125,
-0.0361328125,
0.0135498046875,
0.054931640625,
0.061279296875,
-0.006500244140625,
-0.01318359375,
-0.042724609375,
... | 27,499 | 27499 |