content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
A Hybrid of DL and WYL Nonlinear Conjugate Gradient Methods
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 279891, 9 pages
http://dx.doi.org/10.1155/2014/279891
Research Article
A Hybrid of DL and WYL Nonlinear Conjugate Gradient Methods
^1School of Information and Statistics, Guangxi University of Fin... | 4 | [
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0.027099609375,
0.0771484375,
0.016845703125,
0.0069580078125,
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0.1279296875,
-0.02001953125,
... | 19,800 | 19800 | |
Biochemical Frequency Control by Synchronisation of Coupled Repressilators: An
Computational Intelligence and Neuroscience
Volume 2011 (2011), Article ID 262189, 9 pages
http://dx.doi.org/10.1155/2011/262189
Research Article
Biochemical Frequency Control by Synchronisation of Coupled Repressilators: An In Silico Stu... | 4 | [
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0.0091552734375,... | 19,801 | 19801 | |
eigenvector q and cayley-hamilton
October 12th 2011, 03:31 PM
shimara
eigenvector q and cayley-hamilton
hey,
I am going through artin 1st edition myself and I am having problems with 2 questions from chapter 4.
Attachment 22554
Attachment 22555
Thanks for your help.
October 12th 2011, 03:38 P... | 5 | [
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0.002655... | 19,802 | 19802 | |
Please help with parametric equations
October 18th 2006, 07:19 PM
riverjib
Please help with parametric equations
Can somebody help me with the following problems? For each of the following parametric curves, describe the motion of the particle. That is, tell the type of curve, the starting point of the
parti... | 5 | [
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-0.... | 19,803 | 19803 | |
polynomial rings
February 11th 2009, 11:48 AM #1
Member
Joined
Sep 2008
Posts
166
polynomial rings
$\mathbb{Z}_3[x]/(x^2+1)$ is a field of order 9. How do I find a generator for the cyclic multiplicative group of nonzero elements?
Let $\alpha = x + (x^2+1)$. All elements in this field are $a+b\alpha... | 4 | [
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0.0... | 19,804 | 19804 | |
Math Help
February 7th 2008, 03:33 PM #1
integration
i am having some trouble with the following problem.
solve:
dy/dx= (x+1)/y-1), y>1
here is what is have done so far-
(y-1) dy/dx=(x+1)
S[(y-1)dy/dx]dx=S(x+1)dx
y^2/2 -y=x^2/2+x <-i feel this is where i made a mistake
Any help... | 5 | [
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0.0286865234375,
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Brevet US6509866 - Fast chirp transform
CROSS REFERENCE TO RELATED APPLICATION(S)
This application claims the benefit of U.S. Provisional Application No. 60/175,769 filed on Jan. 12, 2000, which is hereby incorporated by reference as if set forth in full herein.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEV... | 4 | [
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... | 19,806 | 19806 | |
set union/intersections/compliments
July 15th 2010, 11:58 PM #1
Super Member
Joined
Apr 2009
Posts
677
set union/intersections/compliments
I have been thinking about this - do not know if there is any formal way to approcah this problem
Few definitions
S = Universal set
A,B,C,D,.... = Subse... | 4 | [
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0.029... | 19,807 | 19807 | |
Study on Notch Sensitivity of Fracture Properties of Concrete Containing Nano-SiO
Journal of Nanomaterials
Volume 2013 (2013), Article ID 381682, 7 pages
http://dx.doi.org/10.1155/2013/381682
Research Article
Study on Notch Sensitivity of Fracture Properties of Concrete Containing Nano-SiO[2] Particles and Fly Ash
^... | 4 | [
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The focal length of a mirror. Help me maybe?
ok, answer is 40cm.
x=dist from mirror to obj.
x'=dist from mirror to image.
m=magnification
L=vergence before reflection
L'=vergence after reflection
F=power of the mirror
y=object height
y'=image height
f=primary focal point
F=-1/f or f=-1/F
F+L=L'
m=y'/y & x'/x
L=1/x
L'=... | 4 | [
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Patent US6433710 - Data compression and multiple parameter estimation
BACKGROUND TO THE INVENTION
This invention relates to a method of data compression for the estimation of a plurality of parameters on which a dataset is dependent.
There are many instances where objects consist of many data, whose values are determ... | 4 | [
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Growth rate and regular coins, and one unfair coin.
January 11th 2013, 11:49 AM
greatapt
Growth rate and regular coins, and one unfair coin.
I'm completely lost on this one; I haven't encountered a question like this before (with two growth rates).
So, there's this experimenter who tosses 4 coins (this is t... | 4 | [
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Cylinder in related rates
November 16th 2009, 06:02 PM #1
Member
Joined
Oct 2009
Posts
229
Cylinder in related rates
A cylinder is of 0.08 foot thickness and when the radius is 150 feet, the radius is increasing at the rate of 0.5 foot per minute.It's asking for the rate in cubic feet per minute.
I ... | 4 | [
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Moment of Inertia and torque?
Register to reply
by miamirulz29
Tags: inertia, moment, torque
P: 62 1. The problem statement, all variables and given/known data
The combination of an applied force and ... | 4 | [
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Showing the properties of differentiating an integral
greswd
How do we show that
[tex]\frac{d}{dt}\left[\int\!y\,\mathrm{d} x\right] = y\,\frac{dx}{dt}[/tex]
Are we to assume, here, that y and x are functions of t? If we assume that y is a function of x only (with no "t" that is not in the "x") and x is a function... | 5 | [
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0.0... | 19,814 | 19814 | |
Patent US4620792 - Method of simply setting expansion regions for conversion of values of colors according to xyz notation system into values of colors according to Munsell notation system
This invention relates to converting values which numerically express a color from the so-called CIE notation system to the Munsell... | 5 | [
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0.09423828125... | 19,815 | 19815 | |
Using Calculus to find a Point on a circle
November 25th 2010, 06:10 PM
Dudealadude
Using Calculus to find a Point on a circle
Hello, I am trying to find the closest point on the circle x^2+y^2=1 to (1,2) using calculus, not geometry. However, when I try, I get:
x^2+y^2=1
y=sqrt(1-x^2)
trying to fin... | 5 | [
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... | 19,816 | 19816 | |
10 points for a FULL explaination and answer to this vector question. Urgent?
March 5th 2010, 11:03 AM #1
Newbie
Joined
Feb 2010
Posts
4
Full explaination and answer to this trigonometric question
A ship sailing due north at a speed of 20km/h observes another ship which appears, to those on the first shi... | 4 | [
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... | 19,817 | 19817 | |
Brevet US6044208 - Incremental critical area computation for VLSI yield prediction
CROSS-REFERENCE TO RELATED APPLICATION
This application is related in subject matter to the disclosure of application Ser. No. 09/085,093 filed May 26, 1998, for "A Incremental Method for Critical Area and Critical Region Computation of... | 4 | [
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compact space
May 2nd 2009, 06:39 AM
hunkydory19
compact space
If f: X ---> Y is a continuous map of topological spaces and X is compact, then f(X) is compact.
Suppose that $\mho$ is an open cover of f(X) by sets open in Y.
By continuity of f, $f^-1(U)$ is open in X for every U in $\mho.$
The collec... | 4 | [
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Remainders
November 9th 2010, 03:42 PM
kiddopop
Remainders
Question: What are the last three digits of x=673^(2802) when it is written base 10? (Hint: This is the same as asking for the remainder when x is divded by 1000)
I figured it out, just wanted to make sure this was right...
1000=2^3 x 5^3
ϕ... | 5 | [
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Two Interesting Probability Questions
Nikolaj
I don't know even how to begin, so if you could direct me, maybe some good article on internet that would help me to solve this, don't really know math terminology in English so don't know how to
find it.
Are you still working on this problem? You should take bpet's adv... | 4 | [
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0.00817... | 19,821 | 19821 | |
I dont understand this triangle math question
April 4th 2009, 09:20 PM
yeunju
I dont understand this triangle math question
If its not too much trouble
The Directions said: two triangles can be formed using the given measurements. Solve both triangles.
A= 60 degrees, side a = 12, side b = 13
I dre... | 4 | [
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User:Michiexile/MATH198/Lecture 8
From HaskellWiki
< User:Michiexile | MATH198
(Difference between revisions)
← Older edit Newer edit →
Line 1: Line 1:
IMPORTANT NOTE: THESE NOTES ARE STILL UNDER
DEVELOPMENT. PLEASE W... | 4 | [
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Find the MGF of a random variable given its pdf
April 16th 2012, 06:01 PM
MathCrash
Find the MGF of a random variable given its pdf
Note: This forms part of an assignment I'm on the hook for, so I'm really looking for pointers on where I'm going wrong as opposed to just a 'here's your answer' reply
The Prob... | 5 | [
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Trig Equations
October 21st 2008, 05:13 AM #1
Newbie
Joined
Oct 2008
Posts
9
Trig Equations
Solve for 0 less than or equal to x less than or equal to 360.
a) cos2x = tan2x
b) cos3x + cosx = 0
Many thanks in advance.
a) $\cos{2x} = \tan{2x}$
$\cos{2x} = \frac{\sin{2x}}{\cos{2x}}$
... | 4 | [
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0.02685... | 19,825 | 19825 | |
Geometric Sequences
September 10th 2007, 03:32 PM #1
Newbie
Joined
Jun 2007
Posts
13
Geometric Sequences
I thank all of you again for helping me, and having the patience to withstand my idiocy. I understand the concept, but maybe it's the wording of the question that is throwing me off, so I am
wonde... | 4 | [
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volume of the ellipsoid (triple intergral) plz help =)
September 29th 2009, 05:59 AM #1
Newbie
Joined
Sep 2008
Posts
9
Find the volume of the ellipsoid
x^2/a^2 +y^2/b^2 +z^2/c^2 =1
by solving the triple integral AFTER having made the transformation
x = au, y = bv, and z = cw.
Thanks for ur... | 5 | [
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0.02880859375,
0.0011138916015625,
0.041015625,
-0.039306640625... | 19,827 | 19827 | |
simple integration
June 13th 2011, 08:40 PM #1
Newbie
Joined
May 2011
Posts
8
simple integration
ok I know how integrals work and I have been using integrals to find area under the curves, I know integration by U sub and also by parts. but for some reason maybe it just slipped my mind but
how do I in... | 5 | [
0.0047607421875,
-0.04541015625,
0.068359375,
-0.02001953125,
0.016845703125,
-0.0291748046875,
0.058349609375,
-0.061767578125,
-0.039794921875,
-0.0024566650390625,
-0.005035400390625,
-0.061279296875,
-0.0235595703125,
0.034912109375,
-0.01025390625,
-0.058349609375,
-0.0184326171... | 19,828 | 19828 | |
Calculus I: infinite series
For what values of $0 < p \leq 1$ the alternating series $\sum_{n =1}^{\infty}(-1)^{n-1} \frac{\tan^{-1} n}{n^p}$ is convergent?
Answer. It is convergent for all $p\in(0,1]$. Solution. Due to Leibniz rule, it suffices to prove that $f(t,p):=\frac{\mathrm{ArcTan(t)}}{t^{p}}$ is decreasing fo... | 5 | [
0.0625,
-0.000396728515625,
0.123046875,
0.0712890625,
-0.038818359375,
-0.01385498046875,
0.04150390625,
0.08544921875,
0.01019287109375,
0.01165771484375,
-0.03857421875,
0.06982421875,
-0.036376953125,
-0.004119873046875,
-0.06787109375,
-0.10302734375,
0.02490234375,
-0.140625,... | 19,829 | 19829 | |
Damped Oscillations & Sequences
October 21st 2007, 08:39 PM #1
Junior Member
Joined
Sep 2007
Posts
51
Damped Oscillations & Sequences
1) Spring of mass 1kg and its damping constant c = 10. The spring starts from it equilibrium position with a velocity of 1 m/s. graph the position function for the followi... | 5 | [
-0.037109375,
0.02197265625,
0.09033203125,
-0.0036773681640625,
-0.0245361328125,
0.037353515625,
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0.0263671875,
0.012451171875,
0.022705078125,
0.01544189453125,
-0.052734375,
0.060791015625,
-0.03369140625,
-0.05908203125,
0.039306640625,
0.021484375,
0.0495605... | 19,830 | 19830 | |
Posts about Dedekind domains on Delta Epsilons
Posted by Akhil Mathew in algebra, algebraic number theory, commutative algebra, number theory.
Tags: Chinese remainder theorem, Dedekind domains, ramification
1 comment so far
So, now to the next topic in introductory algebraic number theory: ramification. This is a meas... | 4 | [
-0.057373046875,
0.01287841796875,
0.00531005859375,
-0.08154296875,
0.061767578125,
-0.00653076171875,
0.1171875,
0.043212890625,
-0.0047607421875,
-0.08544921875,
0.01141357421875,
-0.0162353515625,
0.03955078125,
-0.0458984375,
0.05322265625,
0.03369140625,
-0.029052734375,
0.00... | 19,831 | 19831 | |
MathGroup Archive: September 2008 [00011]
[Date Index] [Thread Index] [Author Index]
Re: Inclusion-Exclusion Principle in Mathematica
• To: mathgroup at smc.vnet.net
• Subject: [mg91666] Re: Inclusion-Exclusion Principle in Mathematica
... | 5 | [
-0.03173828125,
-0.00799560546875,
0.04541015625,
-0.043701171875,
-0.0245361328125,
-0.01055908203125,
0.12353515625,
-0.05712890625,
-0.00689697265625,
0.0218505859375,
0.006927490234375,
-0.02099609375,
0.021728515625,
-0.037109375,
-0.10400390625,
0.0478515625,
-0.003662109375,
... | 19,832 | 19832 | |
F: [0,infinity) -> R is continuous at every point of its domain
whitey06
Problem:
Assume that f: [0,infinity) -> R is continuous at every point of its domain. Show that if there exists a b>0 so that f is uniformly continuous on the set [b,infinity) then f is uniformly continuous
on [0,infinity).
I don't really know... | 4 | [
-0.0228271484375,
0.0673828125,
-0.08349609375,
-0.041015625,
0.0230712890625,
0.02880859375,
0.05810546875,
-0.0008544921875,
-0.056884765625,
0.00726318359375,
-0.0380859375,
-0.0029449462890625,
0.0419921875,
0.02685546875,
0.07861328125,
0.031005859375,
0.0032806396484375,
-0.0... | 19,833 | 19833 | |
Finding GCD using Euclid's algorithm
September 22nd 2008, 10:26 AM #1
Newbie
Joined
Sep 2008
Posts
17
I am having trouble with this problem. I can work the problem to find the GCD but I cannot get it to work backwarks so that I can express it in
ma + nb form. Can anyone help me. The problem is for (11... | 5 | [
-0.01177978515625,
0.07568359375,
-0.06494140625,
-0.111328125,
-0.01806640625,
-0.03857421875,
-0.037841796875,
0.000652313232421875,
-0.1015625,
-0.0059814453125,
0.0673828125,
-0.000560760498046875,
0.0791015625,
-0.0546875,
-0.026611328125,
0.0262451171875,
-0.0478515625,
0.050... | 19,834 | 19834 | |
can this equation be solved for x or it impossible?
April 18th 2009, 09:04 AM #1
Newbie
Joined
Apr 2009
Posts
1
can this equation be solved for x or it impossible?
can this equation be solved for x or is it impossible?
x(y) + z + x(w) = t + t(y) + z + t(w)
trying to get to x = ...?
Hello, ... | 4 | [
-0.1640625,
-0.003936767578125,
-0.00885009765625,
0.11669921875,
0.00750732421875,
0.0107421875,
0.06494140625,
-0.0927734375,
-0.0277099609375,
-0.00057220458984375,
0.08935546875,
0.00174713134765625,
0.043701171875,
0.1220703125,
0.0296630859375,
0.07177734375,
-0.06103515625,
... | 19,835 | 19835 | |
Adaptive Evolution of Cooperation through Darwinian Dynamics in Public Goods Games
Abstract
The linear or threshold Public Goods game (PGG) is extensively accepted as a paradigmatic model to approach the evolution of cooperation in social dilemmas. Here we explore the significant effect of
nonlinearity of the structur... | 4 | [
-0.0196533203125,
-0.060546875,
0.0107421875,
-0.026611328125,
0.019775390625,
0.047119140625,
-0.0235595703125,
-0.03271484375,
-0.048095703125,
0.0625,
-0.00897216796875,
0.03125,
0.02099609375,
-0.03955078125,
-0.00555419921875,
-0.0048828125,
-0.01495361328125,
-0.0107421875,
... | 19,836 | 19836 | |
Brevet US4030067 - Table lookup direct decoder for double-error correcting (DEC) BCH codes using a pair of syndromes
RELATED APPLICATIONS
U.S. application Ser. No. 644,776 entitled "Matrix Multiplier in GF(2.sup. m)" invented by the same inventors and assigned to the same assignee named herein and filed on the same da... | 4 | [
-0.0361328125,
0.0279541015625,
-0.08935546875,
-0.0859375,
-0.1142578125,
-0.0390625,
-0.006866455078125,
0.046875,
-0.06787109375,
0.031005859375,
0.048583984375,
0.040771484375,
0.0986328125,
-0.0947265625,
-0.060546875,
0.01019287109375,
-0.08642578125,
0.083984375,
-0.052001... | 19,837 | 19837 | |
On Properties of Meromorphic Solutions of Certain Difference Painlevé III Equations
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 208701, 9 pages
http://dx.doi.org/10.1155/2014/208701
Research Article
On Properties of Meromorphic Solutions of Certain Difference Painlevé III Equations
School of Mathema... | 5 | [
-0.10693359375,
-0.000545501708984375,
0.07177734375,
0.10205078125,
0.080078125,
0.01806640625,
0.04296875,
0.060302734375,
0.05908203125,
-0.0810546875,
0.09716796875,
-0.00555419921875,
-0.01373291015625,
0.03173828125,
0.01324462890625,
-0.10107421875,
-0.044677734375,
-0.03710... | 19,838 | 19838 | |
Finding a function (f) and a number a that satisfy the definite integral
January 23rd 2013, 03:11 PM #1
Newbie
Joined
Jan 2013
From
Earth
Posts
1
Finding a function (f) and a number a that satisfy the definite integral
Question: Find a function (f) and a number 'a' that satisfy the definite integral... | 5 | [
0.06494140625,
-0.06201171875,
0.07080078125,
0.035400390625,
-0.0286865234375,
0.029296875,
0.0255126953125,
0.056884765625,
0.03564453125,
0.0419921875,
0.06689453125,
0.04296875,
0.00848388671875,
0.01300048828125,
0.0216064453125,
0.020751953125,
-0.068359375,
-0.05517578125,
... | 19,839 | 19839 | |
Equation of plane perpendicular to another
I don't know why you deleted the line representation:
x=t-4,y=5t+2,z=2t+1
In its entirety, this line must lie in the plane(s) we are seeking:
a((t-4)+4)+b((5t+2)-2)+c((2t+1)-1)=0
In particular, it must hold for ALL values of t, showing that the constraint on the admissible pl... | 4 | [
-0.09130859375,
0.049560546875,
-0.0211181640625,
-0.08935546875,
0.0167236328125,
0.05908203125,
-0.006134033203125,
0.003509521484375,
-0.03955078125,
0.059814453125,
0.0009307861328125,
-0.0208740234375,
0.02392578125,
0.033203125,
-0.1142578125,
0.015380859375,
-0.06103515625,
... | 19,840 | 19840 | |
Hypothetical Interstellar Spacecraft
Janus
Of course, the above equation is only accurate for values of delta v small with respect to c. The relativistic version is
$$ \Delta v = c \tanh^{-1} \left (\frac{v_e}{c} \ln \left( \frac{M_i}{M_f} \right ) \right ) $$
So for example, if we had a ## v_e## of 0.2 c and a ra... | 5 | [
-0.036376953125,
0.04248046875,
0.02978515625,
0.07763671875,
0.0771484375,
-0.024169921875,
-0.0615234375,
0.09912109375,
0.00579833984375,
-0.0274658203125,
0.0673828125,
-0.091796875,
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0.06884765625,
0.01708984375,
-0.01239013671875,
0.044921875,
0.07177734375,
... | 19,841 | 19841 | |
One more integral help
February 28th 2008, 04:30 PM #1
Junior Member
Joined
Feb 2008
Posts
48
One more integral help
I need help with this:
1/(x((x^2-4)^1/2))
One divided by (x times the square root of x^2-4)
A buddy got it to a couple of ln's but I used trig substitution.
I let:
... | 5 | [
0.031494140625,
-0.080078125,
0.0693359375,
0.006591796875,
-0.038818359375,
-0.058349609375,
-0.048095703125,
0.0260009765625,
0.05517578125,
-0.015625,
0.057373046875,
-0.037841796875,
-0.042724609375,
0.10791015625,
-0.059326171875,
0.09130859375,
0.0206298828125,
0.000127792358... | 19,842 | 19842 | |
Right Circular Cylinder problem...
January 10th 2010, 03:30 AM #1
Newbie
Joined
Jan 2010
Posts
15
1.) Find the waste in making the largest possible cylindrical rod from a bar of iron 3ft long which has a cross section whose diagonal is 6 inches.
2.) A certain factory manufactures tin cans. It receiv... | 4 | [
0.00732421875,
0.039794921875,
-0.05078125,
-0.0306396484375,
0.026123046875,
-0.06201171875,
0.00732421875,
0.08056640625,
-0.042236328125,
0.003875732421875,
-0.08837890625,
-0.052734375,
0.051025390625,
0.038818359375,
-0.03955078125,
-0.061767578125,
0.0400390625,
0.01544189453... | 19,843 | 19843 | |
Interesting theorem for exponential dist.
October 12th 2008, 04:29 AM #1
Member
Joined
Jan 2006
From
Gdansk, Poland
Posts
117
Interesting theorem for exponential dist.
I have a problem proving the following theorem...
Let $T_1, T_2, ...$ be independent random variables of exponential distributio... | 5 | [
-0.10107421875,
0.012451171875,
0.04248046875,
0.004058837890625,
-0.01513671875,
0.02734375,
0.10205078125,
0.0174560546875,
0.17578125,
0.041259765625,
0.00714111328125,
0.012451171875,
0.111328125,
0.035400390625,
0.0595703125,
-0.01129150390625,
-0.06689453125,
-0.06298828125,
... | 19,844 | 19844 | |
Wojciech Leończuk, and Michał Muzalewski. Abelian groups, fields and vector spaces
Results 1 - 10 of 66
- Journal of Formalized Mathematics , 1990
"... Summary. Some operations on the set of n-tuples of real numbers are introduced. Addition, difference of such n-tuples, complement of a n-tuple and multiplication of ... | 4 | [
-0.10986328125,
0.02880859375,
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0.0247802734375,
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0.0230712890625,
0.002593994140625,
-0.052001953125,
-0.006439208984375,
0.000942230224609375,
-0.059570... | 19,845 | 19845 | |
binomial distribution dice and coins
December 23rd 2007, 11:10 AM #1
Newbie
Joined
Dec 2007
Posts
9
binomial distribution dice and coins
Hey, so I have 2 questions for now that I really need some help on. The first is...
1. A person rolls a pair of fair dice. What is the probability that this person ... | 4 | [
0.002532958984375,
-0.0294189453125,
0.06298828125,
0.0050048828125,
-0.0283203125,
0.03759765625,
0.130859375,
0.0125732421875,
0.021484375,
0.0693359375,
-0.004119873046875,
-0.0546875,
0.004974365234375,
0.0013427734375,
0.003082275390625,
-0.0012359619140625,
-0.0537109375,
-0.... | 19,846 | 19846 | |
abulated
Theory
It is possible to specify intermolecular interaction functions that are different from the normal Lennard-Jones or Buckingham type. To implement such functions, one can make use of tabulated
potentials or otherwise modify the source code, which is much more laborious. For information on tabulated pote... | 4 | [
-0.06787109375,
-0.09423828125,
-0.09521484375,
-0.056884765625,
-0.0059814453125,
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0.023681640625,
0.06005859375,
0.0157470703125,
0.00799560546875,
-0.027099609375,
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0.031494140625,
0.0096435546875,
-0.025634765625,
-0.041748046875,... | 19,847 | 19847 | |
Induction (involving inequality)
January 15th 2009, 02:50 AM #1
Newbie
Joined
Oct 2008
From
@home
Posts
17
Induction (involving inequality)
Hello,
I am trying to understand the solution to a problem
but I can't understand it. Could you explain it, please?
Here is the problem:
Prove by... | 5 | [
0.003570556640625,
0.042236328125,
0.0673828125,
0.099609375,
0.021240234375,
-0.040283203125,
-0.03271484375,
0.047607421875,
-0.0004425048828125,
-0.03662109375,
-0.1533203125,
-0.01348876953125,
0.0390625,
0.0074462890625,
-0.103515625,
-0.044921875,
0.0966796875,
-0.064453125,
... | 19,848 | 19848 | |
Convergent/Divergent Sequences...
May 20th 2005, 11:19 PM
zee
Convergent/Divergent Sequences...
Which of the following sequences are convergent and which are divergent?
a) $a_{n} = (1+2n)^{\frac{1}{n}}$
b) $a_{n} = cos(n\pi)$
c) $a_{n} = \frac{cos(3n)}{(1+n^{1/2})}$
This is what I got:
a) By... | 4 | [
-0.08203125,
-0.07763671875,
-0.02734375,
-0.0242919921875,
-0.06884765625,
0.01043701171875,
0.0208740234375,
0.0712890625,
0.0126953125,
-0.0274658203125,
0.06591796875,
-0.014892578125,
-0.043701171875,
0.06982421875,
-0.031494140625,
-0.053955078125,
0.0242919921875,
-0.0717773... | 19,849 | 19849 | |
Comparison between Two Methods to Calculate the Transition Matrix of Orbit Motion
Mathematical Problems in Engineering
Volume 2012 (2012), Article ID 768973, 12 pages
http://dx.doi.org/10.1155/2012/768973
Research Article
Comparison between Two Methods to Calculate the Transition Matrix of Orbit Motion
^1Grupo de Di... | 4 | [
-0.048095703125,
0.036865234375,
-0.03271484375,
-0.03271484375,
-0.008544921875,
-0.0751953125,
-0.091796875,
0.068359375,
0.044921875,
0.06689453125,
0.00543212890625,
-0.03564453125,
-0.0038299560546875,
-0.061279296875,
-0.0537109375,
-0.04345703125,
-0.0198974609375,
0.0084228... | 19,850 | 19850 | |
Lie Group Analysis of Unsteady Flow and Heat Transfer over a Porous Surface for a Viscous Fluid
Journal of Applied Mathematics
Volume 2012 (2012), Article ID 675287, 17 pages
http://dx.doi.org/10.1155/2012/675287
Research Article
Lie Group Analysis of Unsteady Flow and Heat Transfer over a Porous Surface for a Viscou... | 5 | [
0.00885009765625,
0.0269775390625,
0.0673828125,
0.0478515625,
0.061279296875,
-0.06396484375,
-0.0281982421875,
-0.095703125,
0.07275390625,
-0.034912109375,
0.00592041015625,
-0.01953125,
0.02783203125,
-0.00335693359375,
-0.005462646484375,
-0.05908203125,
-0.142578125,
0.061767... | 19,851 | 19851 | |
powers and congruences
October 23rd 2009, 02:05 PM
jimmyjimmyjimmy
powers and congruences
Hi, I don't know how to do math code or anything to make it look good, but bear with me please.
Given integers a and m,
Suppose a^e == 1 mod m (where == is the congruence sign, ^ raises to a power)
Suppose e ... | 5 | [
-0.038330078125,
0.0751953125,
0.000701904296875,
0.1015625,
-0.00191497802734375,
-0.0439453125,
0.099609375,
-0.0096435546875,
0.0016937255859375,
0.055908203125,
0.05517578125,
-0.021484375,
0.1103515625,
0.041259765625,
0.047119140625,
0.046142578125,
-0.053955078125,
0.0280761... | 19,852 | 19852 | |
manipulating limsup
March 5th 2009, 10:06 AM
claire511
manipulating limsup
I have to answer a question about limsups but im a bit confused...
Suppose an, bn, cn and dn are sequences of real numbers with dn in [0,1] for every n and cn=dnan+(1-dn)bn. Assume limsupan and limsupbn are finite, prove:
limsup... | 5 | [
-0.11279296875,
-0.1025390625,
0.0322265625,
-0.0439453125,
0.0228271484375,
0.031494140625,
-0.0172119140625,
0.04150390625,
-0.0400390625,
-0.053466796875,
-0.055908203125,
-0.051513671875,
0.05517578125,
0.072265625,
-0.06787109375,
-0.0400390625,
0.0084228515625,
-0.052734375,
... | 19,853 | 19853 | |
Effect of Surface Roughness on MHD Couple Stress Squeeze-Film Characteristics between a Sphere and a Porous Plane Surface
Advances in Tribology
Volume 2012 (2012), Article ID 935690, 10 pages
http://dx.doi.org/10.1155/2012/935690
Research Article
Effect of Surface Roughness on MHD Couple Stress Squeeze-Film Character... | 5 | [
0.0024871826171875,
-0.031982421875,
0.1162109375,
-0.0234375,
0.0159912109375,
-0.006439208984375,
0.011962890625,
0.07958984375,
0.019287109375,
-0.0380859375,
-0.057373046875,
-0.0211181640625,
0.03564453125,
0.1015625,
-0.00909423828125,
0.01495361328125,
0.09326171875,
-0.0013... | 19,854 | 19854 | |
Discrete Math, Pigeon Hole Principle/Sum of Elements of Subsets
March 25th 2009, 08:45 PM #1
Newbie
Joined
Mar 2009
Posts
3
Discrete Math, Pigeon Hole Principle/Sum of Elements of Subsets
Ok, so the question is to show for any set A of positive integers taken from {1,2,...,12}, A must contain two disjoin... | 5 | [
0.044189453125,
0.06298828125,
0.0255126953125,
-0.07080078125,
0.0220947265625,
0.033447265625,
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-0.0225830078125,
-0.035400390625,
0.0191650390625,
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0.057373046875,
0.021240234375,
-0.10107421875,
0.0203857421875,
0.034912109375,
-0.0107421875,
-0.0197... | 19,855 | 19855 | |
Infinitely Many Solutions for a Robin Boundary Value Problem
International Journal of Differential Equations
Volume 2010 (2010), Article ID 548702, 9 pages
http://dx.doi.org/10.1155/2010/548702
Review Article
Infinitely Many Solutions for a Robin Boundary Value Problem
^1School of Mathematic Sciences, Qufu Normal Un... | 5 | [
-0.083984375,
0.039794921875,
0.048583984375,
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0.041259765625,
0.017822265625,
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0.001556396484375,
0.00018405914306640625,
-0.0023040771484375,
-0.031494140... | 19,856 | 19856 | |
Factorising
August 14th 2008, 09:13 AM
Joker37
Factorising
Hi! I am having trouble factorising these:
6xsquared - 11x - 35
6xsquared - 37x + 45
Can someone please show me worked examples to these. And sorry, I don't know how to use latex but I will learn it soon to make mathematical interpretation... | 4 | [
-0.00738525390625,
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0.0771484375,
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-0.0203857421875,
-0.109375,
0.018798828125,
0.0380859375,
0.023681640625,
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-0.01190185546875,
-0.0361328125,
0.052978515625,
-0.01495361328125,
0.036621093... | 19,857 | 19857 | |
Iteration of a quadratic equation
January 12th 2011, 09:25 AM #1
Newbie
Joined
Jan 2011
Posts
4
Iteration of a quadratic equation
Hi there,
I've been asked to calculate the roots of this equation by iteration (showing roots to 2d.p)
x^2 + 5x + 2 = 0
I try to look up the method on youtube a... | 4 | [
-0.06591796875,
-0.0439453125,
0.10107421875,
0.041015625,
0.04833984375,
-0.01300048828125,
-0.0595703125,
0.0458984375,
0.006805419921875,
-0.014404296875,
0.1201171875,
-0.0048828125,
-0.03759765625,
0.043212890625,
-0.031982421875,
0.05517578125,
-0.0185546875,
-0.020263671875,... | 19,858 | 19858 | |
The Electric Field of a Dipole
Taylor expansion of \(1/\left|\mathbf{r}-\mathbf{r}^{\prime}\right|\) to calculate this field. Find out how this series expansion yields multipole moments, a very powerful description of the electric
field.
Problem Statement
Find the electric field of an electric dipole using the follow... | 5 | [
-0.0118408203125,
0.055419921875,
0.0255126953125,
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0.115234375,
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0.099609375,
0.0625,
0.03271484375,
0.015869140625,
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0.00086212158203125,
-0.039306640625,
0.034423828125,
0.026611328125,
-0.00421142578125,
-0.06884765625,
-0.0... | 19,859 | 19859 | |
Patent US5253336 - Method for fitting third-degree Bezier curves to series of data points
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for fitting third-degree Bezier curves to a series of data points. 2. Description of the Related Art
In the field of computer graph... | 4 | [
-0.0869140625,
0.029296875,
-0.0654296875,
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0.021484375,
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0.0859375,
0.0252685546875,
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0.04541015625,
-0.0242919921875,
-0.008056640625,
-0.0654296875,
0.00848388671875... | 19,860 | 19860 | |
Rainy Day Markov Chain
October 11th 2010, 01:56 PM #1
Newbie
Joined
Mar 2010
Posts
19
Rainy Day Markov Chain
Suppose the probability of rain today is .6 if rain fell yesterday, but only .2 if it did not.
What is the average duration (number of days) of a rainy period?
I have found the transitio... | 4 | [
0.00122833251953125,
-0.02001953125,
0.091796875,
0.029052734375,
0.0179443359375,
-0.06298828125,
0.02392578125,
-0.03173828125,
0.00244140625,
0.037841796875,
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0.033935546875,
0.0005340576171875,
-0.00732421875,
0.045166015625,
-0.1337890625,
-0.063... | 19,861 | 19861 | |
Genomic prediction when some animals are not genotyped
Abstract
Background
The use of genomic selection in breeding programs may increase the rate of genetic improvement, reduce the generation time, and provide higher accuracy of estimated breeding values (EBVs). A number
of different methods have been developed for ... | 4 | [
-0.056640625,
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-... | 19,862 | 19862 | |
Trigonometric Substitution Integral
March 7th 2010, 12:04 AM
cynlix
Trigonometric Substitution Integral
I'm having trouble on one specific step of this integral:
Original Equation: $\int \frac{-5x}{(x^2+5)^\frac{3}{2}} dx$
where $x = \sqrt{5} tan\Theta$
$dx = \sqrt{5} sec^2\Theta d\Theta$
= $\... | 5 | [
0.003021240234375,
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0.09033203125,
-0.0245361328125,
0.00531005859375,
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0.0576171875,
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0.0830078125,
0.03857421875,
0.03442... | 19,863 | 19863 | |
Solving a begin value problem
Hi, can someone please help me to solve this? y''+9y+20=0, y(0)=1, y'(0)=1
This is a very standard initial value problem. Have you been taught how to solve these? If so, where are you having difficulties with this one? Show us your working so we know where you need help.
Thank you for yo... | 5 | [
-0.07421875,
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0.03515625,
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0.04541015625,
-0.058837890625,
-0.0252685546875,
-0.03955078125,
-0.041015625,
0... | 19,864 | 19864 | |
Hard differential equation
November 1st 2009, 04:40 PM #1
Junior Member
Joined
Sep 2009
Posts
46
Hard differential equation
y''+6y'+9y = e^(-3x)/X^3
I don't know what to do when b^2-4ac is zero. When I do the Wronskien matrix I can't solve for C1 and C2 cause my y1 and y2 are the same:
x^2 + 6x... | 4 | [
-0.07568359375,
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-0.0283203125,
0.0322265625,
0.0272216796875,
-0.0947265625,
-0.0030670166... | 19,865 | 19865 | |
Velocity Height Calculation check
1. An object of mass 1.2kg is fired vertically in a barrel velocity 25n acting over a period of 0.25 seconds, calculate A) The velocity when leave the gun. B). Height reached. C). Time taken to
return to initial height.
2. a= f/m, V^2=U^2+2as
3. A), A=F/M for acceleration, 25/1.2... | 4 | [
0.00439453125,
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-0.00885009765625,
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0.0400390625,
-0.012451171875,
0.0607... | 19,866 | 19866 | |
Continuous emission of fundamental solitons from vortices in dissipative media by a radial-azimuthal potential
« journal navigation
Continuous emission of fundamental solitons from vortices in dissipative media by a radial-azimuthal potential
Optics Express, Vol. 21, Issue 5, pp. 5561-5566 (2013)
http://dx.doi.org/1... | 4 | [
-0.072265625,
-0.07373046875,
0.02490234375,
0.0203857421875,
-0.02490234375,
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0.00860595703125,
-0.0703125,
0.107421875,
0.03173828125,
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-0.0203857421875,
0.032470703125,
0.01904296875,
-0.01116943359375,
-0.05126... | 19,867 | 19867 | |
Roulette Systems: Destroying The Martingale System Myth
Casino Articles
Nearly every gambler will come across the Martingale System at some point in their lives. The premise is so simple that a large proportion of players will actually 'invent' this system themselves.
But like most betting systems, the Martingale Syst... | 5 | [
-0.0302734375,
0.01348876953125,
-0.1015625,
0.04052734375,
0.002716064453125,
-0.0228271484375,
0.017578125,
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0.0634765625,
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-0.0751953125,
-0.06640625,
-0.004638671875,
0.001861572265625,
0.05078125,
-0... | 19,868 | 19868 | |
Spherical Helices for Resonant Wireless Power Transfer
International Journal of Antennas and Propagation
Volume 2013 (2013), Article ID 426574, 12 pages
http://dx.doi.org/10.1155/2013/426574
Research Article
Spherical Helices for Resonant Wireless Power Transfer
University of Split, Faculty of Electrical Engineering... | 4 | [
0.0286865234375,
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0.06787109375,
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0.0057373046875,
-0.021362304... | 19,869 | 19869 | |
Physics Forums - View Single Post - Series expansion of ln(x)
I found the following link at math.com
http://www.math.com/tables/expansion/log.htm
I derived the first expression in the link and the one you gave the following way:
1/1-x = 1 + x + x^2 + x^3 + ...
let x = -x and integrate
1/1+x = 1 - x + x^2 - x^3
i... | 5 | [
-0.033203125,
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0.047119140625,
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0.037353515625,
-0.003570556640625,
-0.035400390625,
0.01953125,
-0.04443359375,
-0.0742187... | 19,870 | 19870 | |
Inverse Laplace Transform
October 10th 2010, 12:12 PM #1
Newbie
Joined
Oct 2010
Posts
2
Inverse Laplace Transform
Could someone help with the inverse transform of this:
$\frac{2e^{-2s}}{s((s+1)^{2}+1)}$
It's a little messier than I'm used to - I'm not quite sure how to handle the heaviside func... | 5 | [
-0.056884765625,
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0.12255859375,
0.01116943359375,
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0.0277099609375,
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0.0277099609375,
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-0.04541015625,
0.076171875,
0.004974... | 19,871 | 19871 | |
Improper Integrals
August 10th 2010, 09:34 AM #1
Newbie
Joined
Aug 2010
Posts
8
Improper Integrals
The question is read
integrate---
int(0 to infinity) (e^-x)(sinx)
So i first expressed this as a limit where
limit A approaching infinity (int 0 to A)(e^-x)(sinx).
I integrated by pa... | 5 | [
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0.041748046875,
0.0419921875,
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0.033935546875,
-0.004791259765625,
-0.0033111572265625,
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0.0390625,
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0.0206298828125,
0.00185394287109375,
0.0771484375,
-0.10107421875,
0.04296875,
-0.01... | 19,872 | 19872 | |
rectangular distribution problem
April 6th 2008, 04:41 AM #1
rectangular distribution problem
Having another problem. Not sure how to even approach this problem. I figure I should be using rectangular distribution somehow.
Let X and Y denote the lengths of the two sides of a rectangle and let them possess i... | 4 | [
0.126953125,
0.041748046875,
-0.004974365234375,
-0.1025390625,
0.0004215240478515625,
0.01361083984375,
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0.034912109375,
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0.0476074218... | 19,873 | 19873 | |
(a^2+2)(b^2+2)(c^2+2)>= 3(a+b+c)^2
Let me take a stab at this. Let's define the function F as $F(a,b,c) = (a^2+2)(b^2+2)(c^2+2) - 3(a+b+c)^2$ We will show that the minumum of this is zero. Taking partial derivatives and setting to
zero gives $F_a = 2a(b^2+2)(c^2+2) - 6(a+b+c) = 0$ $F_b = 2b(a^2+2)(c^2+2) - 6(a+b+c) = 0... | 5 | [
-0.0137939453125,
0.04248046875,
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-0.04833984375,
0.10107421875,
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0.06884765625,
0.05126953125,
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-0.0181884765625,
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-0.06298828125,
-0.046875,
-0.042724609375,
-0.072265625,
0.0084838867... | 19,874 | 19874 | |
Resistance: Ohm´s Law
Posted on October 24th, 2008 by Technology Department
What is Electrical Resistance?
When electrons flow through a bulb or another conductor, the conductor does offers some obstruction to the current. This obstruction is called electrical resistance.
• The longer the conductor higher the res... | 4 | [
-0.01239013671875,
0.049072265625,
0.03173828125,
0.0260009765625,
0.03271484375,
-0.052490234375,
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0.022216796875,
0.037841796875,
0.08837890625,
0.00193023681640625,
-0.052978515625,
0.0693359375,
0.011962890625,
0.0034332275390625,
-0.038330078125,
0.00689697265625... | 19,875 | 19875 | |
Machine Learning and the Bing Maps Perceptron
Wow, has it really been that long since I last did a blog post? <checks calendar> Yes, yes, it appears it has been that long. Sorry about that – normal excuses apply: work, kids, moving house, the
dog’s been ill etc.
What’s more, pretty much all my spare time in the last ... | 4 | [
-0.00604248046875,
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0.0341796875,
-0.01434326171875,
0.05712890625,
-0.01312255859375,
-0.046142578125,
-0.0277099609375,
-0.06298828125,
-0.04443359375,
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-0.051513671875,
-0.004547119140625,
-0.017578125,
-0.01202392578125,
-0.0373535156... | 19,876 | 19876 | |
Seperation of Variables
January 10th 2011, 03:36 PM #1
Newbie
Joined
Oct 2010
Posts
24
Seperation of Variables
Hello, I was wondering if you guys could quickly check over my work to make sure I did this question correctly. We're solving differential equations using the seperation of variables:
y(0)=e... | 5 | [
-0.0791015625,
-0.00072479248046875,
0.0299072265625,
0.022216796875,
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0.0693359375,
-0.0028533935546875,
-0.0250244140625,
-0.166015625,
0.04028... | 19,877 | 19877 | |
Help with limits of indeterminant form.
November 7th 2011, 01:37 PM #1
Newbie
Joined
Nov 2011
Posts
1
Help with limits of indeterminant form.
Dear all,
Please help me for the next limits:
1. $lim_{x\rightarrow 0} \frac{x \sin{(\sin{x})}-\sin^{3}x}{x^6}$
2. $lim_{x\rightarrow 0} \frac{1-\frac... | 5 | [
0.01220703125,
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0.02978515625,
-0.01055908203125,
0.0230712890625,
-0.0712890625,
-0.0003261566162109375,
-0.0084228515625,
0.0888671875,
-0.0174560546875,
-0.040283203125,
0.06591796875,
0.021240234375,
0.041748046875,
-0.000308990478... | 19,878 | 19878 | |
ing and
MathModelica--An Object-Oriented Mathematical Modeling and Simulation Environment
4. Application Examples
This section gives a number of application examples of the use of the MathModelica environment. The intent is to demonstrate the power of integration and interactivity--the interplay between the
object-o... | 5 | [
-0.046875,
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0.01226806640625,
-0.03173828125,
-0.0634765625,
-0.130859375,
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0.10205078125,
0.00390625,
0.005584716796875,
0.003814697265625,
-0.059326171875,
0.01312255859375,
0.00122833251953125,
0.046875,
0.0272216796875,
-0.038818359375,
0.0002422332763... | 19,879 | 19879 | |
Related Rates!
November 13th 2006, 07:40 PM #1
Affinity
Guest
Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 2p^3 + x^2 = 4500.
Determine the rate at which sales are changing at a time when x = 50, p = 10, and the price is... | 4 | [
-0.04638671875,
0.03759765625,
0.07080078125,
0.0020599365234375,
0.011474609375,
-0.0052490234375,
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0.047607421875,
-0.048095703125,
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-0.0194091796875,
-0.0172119140625,
0.023193359375,
0.00058746337890625,
0.0220947265625,
-0.06884765... | 19,880 | 19880 | |
Magnetisation due to conduction electrons
1. The problem statement, all variables and given/known data
Due to its spin, the electron possesses a magnetic moment μB.
Treating the conduction electrons in a metal as a free electron gas, obtain an expression for the magnetization due to the magnetic moments of the conduc... | 4 | [
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0.08154296875,
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-0.0244140625,
-0.00933837890625... | 19,881 | 19881 | |
Integrating exponential function in spherical polars
March 29th 2008, 09:05 AM
davebarrass
Integrating exponential function in spherical polars
Hi. Just going over some past exam papers and can't work out how to answer one of the questions as the course notes only use simple examples.
I need to use variatio... | 5 | [
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-0.0245361328125,
0.01507568359375,
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0.052734375,
0.000614166259765625,
0.021484375,
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-0.029296875,
0.01422119140625,
0.068359375,
0.01220703125,
-0.0069580078125,
-0.03247... | 19,882 | 19882 | |
Mathematica 8.0 - solve two recursive relations
P: 1,030
Now that you have it (hopefully) correct, let's speed it up.
First your latest modified code, unchanged, hopefully this is correct. I did remove the Evaluate[] when I realized earlier those were not necessary.
In[1]:= e[0]=1/2;
y[0,x_]:=Exp[-(x^2/4)];
w[x_]:=x... | 5 | [
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0.00799560546875,
-0.11669921875,
0.0419921875,
0.031494140... | 19,883 | 19883 | |
First order linear differential equations and an application
What is the answer to $<br /> \frac{dt}{dv} = \frac{1}{kv - 9.8}<br />$?
$\int \frac{1}{ax + b} \, dx = \frac{1}{a} \ln|ax + b| + C$. So $t = \frac{1}{k} \ln|kv - 9.8| + C$. You should know this if studying differential equations. And you would not be asked ... | 5 | [
-0.054931640625,
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0.046875,
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0.01226806640625,
0.0255126... | 19,884 | 19884 | |
A simpler way to predict bolt preload
Authored by:
Moo-Zung Lee
West Hills, Calif.
Edited by Kenneth J. Korane
ken.korane@penton.com
Key points:
• Engineers traditionally use a laborious, trial-and-error process to calculate bolt stress from torque.
• The universal torque table and torque coefficients link preload torq... | 5 | [
-0.091796875,
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0.0546875... | 19,885 | 19885 | |
Identities
November 8th 2006, 10:41 PM
premedtim
Identities
Ok, I'm having a bad of a time understanding identities for my pre-calc class...all of trig is hard for me to grasp since this is the first time learning any of it (didn't take trig in high
school), so basically my question is with subtraction and a... | 4 | [
-0.09375,
0.076171875,
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0.06591796875,
-... | 19,886 | 19886 | |
I have something that doesn't work out for me
I'm going to use this theorem of differential analysis: if g(x) is differentiable between a and b, then there is a c for which [tex]\frac{g(b)-g(a)}{b-a}[/tex]=g'(c)
Let f be differentiable twice, and let f(0)=f'(0)=0 and let f''(x)[tex]\geq[/tex]1 for all x>0
choose g(x)... | 5 | [
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0.069335937... | 19,887 | 19887 | |
Finding a basis for the subspace of P_2
May 23rd 2010, 05:58 AM #1
Junior Member
Joined
Apr 2009
Posts
48
Finding a basis for the subspace of P_2
Problem Statement:
Let $p(x), q(x) \in P_2$. You may assume that
< $p(x), q(x)$> $= \int_{-1}^1 p(x)q(x)dx$
defines an inner product on $P_2$
... | 5 | [
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0.00628662109375,
-0.01953125,
-0.024658203125,
0.00677490234375,
-0.0135... | 19,888 | 19888 | |
the encyclopedic entry of Euclidean algorithm
In number theory, the Euclidean algorithm (also called Euclid's algorithm) is an algorithm to determine the greatest common divisor (GCD) of two elements of any Euclidean domain (for example, the
integers). Its major significance is that it does not require factoring the tw... | 5 | [
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0.045654296875,
... | 19,889 | 19889 | |
Patent US7917565 - High-speed radix-4 butterfly module and method of performing Viterbi decoding using the same
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the technical field of signal processing and, more particularly, to a high-speed radix-4 butterfly module and the metho... | 4 | [
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0.057861328125,
0.09716796... | 19,890 | 19890 | |
Physics Forums - Conversion Between Coordinate Systems
hp-p00nst3r Aug18-08 03:16 PM
Conversion Between Coordinate Systems
Hello, I've been stuck on this problem for awhile and I've tried googling up some solutions but I still cannot find an answer to this question.
1. The problem statement, all variables and g... | 4 | [
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0.0322265625,
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0.01806640625,
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-0.08251953125,
0.02624511... | 19,891 | 19891 | |
Arranging a fraction to simplify it
LearninDaMath
1. The problem statement, all variables and given/known data
[itex]\stackrel{lim}{x\rightarrow}∞[/itex] [itex]\sqrt{x^2+x}-x[/itex]
What's the deal with this one? You don't do anything with this one.
LearninDaMath
I'm taking the limit of a rational function... | 4 | [
-0.0211181640625,
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0.062255859375,
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-0.043701171875,
0.031982421875,
... | 19,892 | 19892 | |
Implicit differentiation
April 4th 2010, 07:29 AM
satx
Implicit differentiation
Q: Use implicit differentiation to find an equation of the line tangent to the curve yx^2 + xy^2 = 6 at the point (1, 2).
Here's my answer... it is right?
2x(d/dx) + 2y(d/dx) = 6(d/dx) = 0 --> (d/dx)(2x + 2y) = 0 --> dy/dx ... | 5 | [
-0.0194091796875,
-0.03466796875,
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0.044189453125,
0.032470703125,
0.05224609375,
-0.0260009765625,
0.03515625,
-0.038818359375,
-0.0031280517578125,
0.125,
-0.006072998046875,
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0.004791259765625,
0.04638671875,
0.181640625,
-0.10546875,
-0.0277099... | 19,893 | 19893 | |
Is my work correct? Prove the following is bijective.
November 28th 2010, 03:44 PM
Lprdgecko
Is my work correct? Prove the following is bijective.
The problem says:
Let A and B be sets. Show that there is a bijective map f: A x B --> B x A.
My professor helped me out and said that the function should b... | 5 | [
0.0361328125,
0.01226806640625,
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0.0478515625,
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0.1455078125,
0.012451171875,
-... | 19,894 | 19894 | |
Determining an expression for a function
August 20th 2007, 02:01 PM
ocmisssunshine
Determining an expression for a function
I can't figure this out for the life of me. Help is much appreciated.
The graph of a quadratic function (a parabola) has x-intercepts -1 and 3 and a range consisting of all numbers les... | 4 | [
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0.054931640625,
-0.02294921875,
... | 19,895 | 19895 | |
system
April 9th 2008, 08:46 AM
gdespina
system
I go to the first class of lyceum and I have to solve the systems in algebra:
x+y=-1
2x+2y=-2
and another one:
x+2y=13
3x+y=4
Please help me with the mathematics.
Thanks a lot.
Pigaino stin proti lukeiou kai prepei na luso... | 4 | [
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0.000659942626953125,
-0.060791015625,
-0.105... | 19,896 | 19896 | |
last question
November 3rd 2007, 08:04 AM
0123
last question
This should be the last.:o
A college basketball player who sinks 75% of his free throws comes to the line to shoot a "one and one" (if the first shot id successful he is allowed a second shot, but no second shot is taken
if the first is missed... | 4 | [
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-0.006317138671875,
-0.0076904296875,
-0.07275390625,
-0.034179687... | 19,897 | 19897 | |
Find length of polar curve
March 28th 2010, 07:09 PM #1
Newbie
Joined
Mar 2010
Posts
3
Find length of polar curve
How do I find the length of the polar curve
r = 4sin(3theta)
I know what the formula for the length of a polar curve is, but the answer I get seems to be too small.
You should ha... | 5 | [
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0.0113525390625,
... | 19,898 | 19898 | |
Compute the closed curve integral of F (dot) dR in two ways.....
November 28th 2012, 07:48 PM #1
Newbie
Joined
Nov 2012
From
Missouri
Posts
2
Compute the closed curve integral of F (dot) dR in two ways.....
Let C be the square with vertices (-1,0), (0,0), (0,1), and (-1,1). Let F=[ycos(x)]i -[y^3] j.... | 4 | [
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0.0255126953125,
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0.055908203125,
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-0.01782... | 19,899 | 19899 |