content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
ROCKCRAWLER.com - Fastener Tech - Calculating Torque Specs
In a previous article, I discussed Grade 8 versus Grade 5 fasteners and I received a few requests right away from loyal RC readers for a follow up article about fastener torque. Your wish is my
command…sometimes. Either way, it seemed like the next logical step... | 4 | [
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0.06640625,
0.0556640625... | 26,500 | 26500 | |
Sorry everyone!!
August 9th 2006, 06:37 AM #1
Newbie
Joined
Aug 2006
Posts
12
Sorry everyone!!
I'm sorry that i'm asking so many q's it's just that im repeating my discrete maths exam nxt wk.Im studying Cs and need to pass it to get to nx yr..So here is another Q.The nand operator is
important in log... | 4 | [
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0.092285156... | 26,501 | 26501 | |
showing differential equation solution
February 5th 2009, 12:49 PM
crafty
showing differential equation solution
for distinct roots (k1, k2) of the equation k^2 + 2Bk + w^2 show that x(t) = Ae^(k1t) + Be^(k2t) is a solution of the following differential equation: (d^2)x/dt^2 + 2B(dx/dt) + (w^2)x = 0
February 5t... | 5 | [
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Required: y-coordinate of point(s) of tangency
Here is the problem:
Find the y-coordinate of the points on the graph of
$y\,=\,ln\,\|x|^3$
from which the tangents to the curve pass through the origin.
Attempted solution:
Drew the graph of
$y\,=\,ln\,\|x|^3$
and sketched two lines, each containing the origin and int... | 5 | [
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Existence Results for a Riemann-Liouville-Type Fractional Multivalued Problem with Integral Boundary Conditions
Journal of Function Spaces and Applications
Volume 2013 (2013), Article ID 676045, 7 pages
http://dx.doi.org/10.1155/2013/676045
Research Article
Existence Results for a Riemann-Liouville-Type Fractional Mu... | 5 | [
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Connections: 5X 1st of 3 consec. even integers is 14 more
This problem baffles me.
5 times the first of 3 consecutive even integers is 14 more than 3 times the second. What is the third consecutive integer?
The equation I have so far is 5x(first integer) = 3y(second integer) + 4.
Do I solve for X? Or do I solve ... | 4 | [
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0.018188476... | 26,505 | 26505 | |
few algabra questions, need help!
November 6th 2006, 02:44 PM #1
Newbie
Joined
Nov 2006
Posts
6
few algabra questions, need help!
Need help on a few algabra problems.
solve the equation for the indicated variable
1. F=9/5C+32, for C
2. Kevin invested part of his $10,000 bonus in a certificat... | 4 | [
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0.09375,
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0.057861328125,
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-0.2... | 26,506 | 26506 | |
A nice quadratic ^^
November 7th 2008, 09:34 AM #1
A nice quadratic ^^
Hello,
What's so special about this polynomial ? :
$P_m(x)=(m-3)x^2+(2m-1)x+(m+2)$, $m \in \mathbb{R}$
The discriminant is $\Delta=(2m-1)^2-4(m-3)(m+2)=4m^2-4m+1-4(m^2-m-6)=\boxed{25}$
One can see that the discriminant is i... | 4 | [
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... | 26,507 | 26507 | |
Need help with: Making a Matrix Singular and Finding Determinates
February 10th 2011, 03:20 PM #1
Junior Member
Joined
Sep 2008
Posts
29
Need help with: Making a Matrix Singular and Finding Determinates
Ok, i have been working on these problems for a bout an hour now and cant seem to find an answer.
... | 4 | [
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-0.0... | 26,508 | 26508 | |
Clousre, Interior, Complement of sets
February 20th 2010, 01:52 PM #1
Senior Member
Joined
Jan 2009
Posts
404
Clousre, Interior, Complement of sets
Let (X,d) be a metric space and B(r,x) is the open ball of radius r about x.
Definition: Let F be a subset of X. The interior of F, int(F), is the set of... | 4 | [
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Traffic Congestion Evaluation and Signal Control Optimization Based on Wireless Sensor Networks: Model and Algorithms
Mathematical Problems in Engineering
Volume 2012 (2012), Article ID 573171, 17 pages
http://dx.doi.org/10.1155/2012/573171
Research Article
Traffic Congestion Evaluation and Signal Control Optimizatio... | 4 | [
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0.1181640625,
-0.0219... | 26,510 | 26510 | |
System Dynamics Model for VMI&TPL Integrated Supply Chains
Discrete Dynamics in Nature and Society
Volume 2013 (2013), Article ID 178713, 17 pages
http://dx.doi.org/10.1155/2013/178713
Research Article
System Dynamics Model for VMI&TPL Integrated Supply Chains
^1School of Management and Economics, Beijing Institute ... | 4 | [
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A Characterization of Completeness via Absolutely Convergent Series and the Weierstrass Test in Asymmetric Normed Semilinear Spaces
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 596384, 8 pages
http://dx.doi.org/10.1155/2014/596384
Research Article
A Characterization of Completeness via Absolutely Conv... | 4 | [
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[SOLVED] integral evaluation
use partial fractions to derive the integration formula $\int \frac{1}{a^2-x^2}dx=\frac{1}{2a}ln\frac{a+x}{a-x}+c$
$\frac{1}{a^2 - x^2} = \frac{1}{(a - x)(a + x)} = \frac{A}{a - x} + \frac{B}{a + x}$. Cross multiplying gives $\frac{1}{a^2 - x^2} = \frac{A(a + x) + B(a - x)}{a^2 - x^2}$ So ... | 5 | [
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0.00848388671875,
-0.002... | 26,513 | 26513 | |
Rectangles
April 24th 2007, 03:46 PM #1
Newbie
Joined
Apr 2007
Posts
9
Can someone help me with these, please
1. The length of a rectangle is 6cm less than twice its width. Find the dimensions of a rectangle if its area is 108cm^2 (squared)?
2. Find the dimensions of a rectangle whose perimeter ... | 4 | [
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... | 26,514 | 26514 | |
Tolerance and numerical analysis
June 5, 2014
By Brian Rowe
This is a companion post to the article What’s the ROI of your loan? It depends…, which discusses approaches for calculating the return on a P2P loan. In that article I make an off-hand remark about
floating point imprecision, which occurred when solving fo... | 5 | [
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Chain rule help
October 3rd 2013, 09:10 PM #1
Senior Member
Joined
Sep 2013
From
Portland
Posts
354
Thanks
19
Chain rule help
the question is find dy/dx at the indicated value of x
y = sqrt[u^2 +5], where u = (1-x)/(1+x) ; x=-2
the answer the book has is 6/sqrt14 but I am getting 3/sqrt... | 5 | [
-0.06982421875,
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0.109375,
0.007415771484375,
0.0032501220703125,
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0.048583984375,
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0.09423828125,
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0.06982421875,
-0.0260009765625,
-0.072265625,
-... | 26,516 | 26516 | |
A Numerical Model of the Wave-Induced Currents in the Turbulent Coastal Zone
ISRN Civil Engineering
Volume 2013 (2013), Article ID 904180, 7 pages
http://dx.doi.org/10.1155/2013/904180
Research Article
A Numerical Model of the Wave-Induced Currents in the Turbulent Coastal Zone
Faculty of Engineering, Cairo Universi... | 4 | [
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Diameter 3 Graph and and minimum maximum degree
December 19th 2011, 04:29 PM
jsndacruz
Diameter 3 Graph and and minimum maximum degree
Problem:
Let G be a graph on n >= 4 vertices such that for any two vertices, v_1 and v_2, there is a path of length <= length 3 with endpoints of v_1 and v_2. Prove that G ha... | 5 | [
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0.024... | 26,518 | 26518 | |
Computational Statistics
Single Point Estimators
The simplest data model is one that just passes its parameters as data values, so that all the variation in the observed data is actually noise. What one wants then is some kind of average that
removes the noise and returns the original value.
For a nontrivial elabo... | 4 | [
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Begin
Step 1: Define test-sheet problem and determine test-sheet composition goal
Step 2: Structure the hierarchy from the top through the intermediate levels (criteria on which
subsequent levels depend) to the lowest level (Figure 1).
Step 3: Construct a set of pair-wise comparison matrix C (size , here... | 4 | [
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permutation
January 8th 2010, 01:10 AM #1
Senior Member
Joined
Jan 2009
Posts
381
permutation
(1) Digital devices store information in the form of digits using only the digits 0 or 1 . Calculate the number of codes which can be stored if they consist 10 digits .
(2) Calculate the number of ways to a... | 4 | [
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0.06591796875,
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-0.03955078125,
-0.059... | 26,521 | 26521 | |
Factoring Completely
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Factoring Completely ┃
┃ Topic Index | Algebra Index | Regents Exam Prep Center┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
Some polynomials cannot be factored into... | 4 | [
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0.00396728515625,
0.0205078125,
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0.134765625,
0.0296630859375,
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0.07763671875,
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0.02966308593... | 26,522 | 26522 | |
Solving Bilevel Multiobjective Programming Problem by Elite Quantum Behaved Particle Swarm Optimization
Abstract and Applied Analysis
Volume 2012 (2012), Article ID 102482, 20 pages
http://dx.doi.org/10.1155/2012/102482
Research Article
Solving Bilevel Multiobjective Programming Problem by Elite Quantum Behaved Parti... | 5 | [
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Equilbrium Equation Help
September 14th 2008, 11:47 PM
someone21
Equilbrium Equation Help
When price is 0.8, the supply is 450 and the demand is 550. But when the price is 1, the supply is 600 and demand is 475.Demand and supply are linear so find the equilibrium??
So first how to make the equations>?
Sept... | 4 | [
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0.040771484375,
-0.1005859375,
-0.... | 26,524 | 26524 | |
Writing equations from pieces of info
January 9th 2007, 10:49 AM #1
Member
Joined
Sep 2006
Posts
99
Writing equations from pieces of info
Given:
Direction opens up with minimum at -2
Passes through (0,0) and (2,0)
Write the equation of the parabola.
Let y = a(x - p)² + q
The q valu... | 4 | [
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0.0673828125,
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... | 26,525 | 26525 | |
Need help proving a relationship
I have to prove that a^log n = n^log a an example would be 2^log n = n^log2 = n
That isn't quite a true statement. It only works for a specific base: $2^{log_2(n)} = n^{log_2(2)} = n$ So your statement needs to read: Prove: $a^{log_a(n)} = n^{log_a(a)}$ This isn't so much a
proof as a ... | 4 | [
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0.033203125,
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0.0084228515625,
0.04638671875,
0.08056640625,
0.058349609375,
-0.1142578125,
0.10986328125... | 26,526 | 26526 | |
Perimeter of Triangle
Given a point (a,b) with 0 < b < a, determine the minimum perimeter of a triangle with one vertex at (a,b), one on the x-axis, and one on the line y=x. Thanks!
Hello, RubyRed! Who assigned this? . . . It is an ugly problem! Given a point $P(a,b)$ with $0 < b < a$, determine the minimum perimeter ... | 4 | [
-0.01611328125,
0.0732421875,
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the encyclopedic entry of rational numbers
In
mathematics
, a
dyadic fraction
or
dyadic rational
is a
rational number
whose
denominator
is a
power of two
, i.e., a number of the form
a
/2
^b
where
a
is an
integer
and
b
is a
natural number
; for example, 1/2 or 3/8, but not 1/3. These are precise... | 4 | [
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0... | 26,528 | 26528 | |
A Gabor-Block-Based Kernel Discriminative Common Vector Approach Using Cosine Kernels for Human Face Recognition
Computational Intelligence and Neuroscience
Volume 2012 (2012), Article ID 421032, 12 pages
http://dx.doi.org/10.1155/2012/421032
Research Article
A Gabor-Block-Based Kernel Discriminative Common Vector Ap... | 4 | [
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Unbounded Positive Solutions and Mann Iterative Schemes of a Second-Order Nonlinear Neutral Delay Difference Equation
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 245012, 12 pages
http://dx.doi.org/10.1155/2013/245012
Research Article
Unbounded Positive Solutions and Mann Iterative Schemes of a Second... | 5 | [
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Linear Diophantine Equations
June 25th 2010, 12:26 PM
dwsmith
Linear Diophantine Equations
$12x+13y=14$
$gcd(12,13)=1\rightarrow \ 1|14$
Can the equations x and y be found using the vector $<12,16> \ \mbox{and} \ (-1,2) \mbox{?}$
$x=-1+12t$
$y=2+13t$
Does this work?
June 25th 2010, 02:05... | 4 | [
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Show that b=3c
$Triangle\: ABC\: with\: A=60$ $if\: \sin A=\sqrt 7 \sin C$ show that $b=3c.$
A=60, sin A= $\frac{\sqrt3}{2}$ sin C= $\frac{sin A}{\sqrt 7}$ sin C= $\frac{\sqrt 3}{2 * \sqrt 7}$ sin C= $\frac{\sqrt 21}{14}$ from here, work out cos C cos C = $\frac{5*\sqrt 7}{14}$ (I am taking
cos C to be positive, other... | 4 | [
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Parabola exercise and checking a log-equation
June 9th 2008, 01:54 AM #1
Parabola exercise and checking a log-equation
The parabola exercise is this one:
'A parabola is given by the equation y = ax^2 + ax + 1, where a is a positive real number different from zero.
(a): Determine a so that the parabola ha... | 4 | [
-0.0322265625,
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Saxon Math Problems
1. Math 54
142 lessons with 30 problems each, plus 540 practice exercises. Over 4,500 problems in all.
Set 12, problem 2. Mickey saw 14 gnomes in the forest and 23 gnomes in the valley. How many gnomes did Mickey see?
Set 13.2. At first thirty-five fairies were flying about. Later twe... | 4 | [
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-0.0322265625,
-0.0144653320... | 26,534 | 26534 | |
need help for circles properties question
May 1st 2010, 12:15 AM
tempq1
need help for circles properties question
In the diagram,the chord AB is perpendcular to the diameter CD,AB=70cm and CE=25cm.Find
a)the radius of the circle
b)the area of triangle AOB,where O is the centre of the circle.
http://... | 4 | [
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-0.040771484375,
-0.0712... | 26,535 | 26535 | |
Asymptotic Stability of Fractional Stochastic Neutral Differential Equations with Infinite Delays
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 769257, 9 pages
http://dx.doi.org/10.1155/2013/769257
Research Article
Asymptotic Stability of Fractional Stochastic Neutral Differential Equations with Infini... | 5 | [
-0.0859375,
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-0.... | 26,536 | 26536 | |
Identity Matrix - Show That AI=IA=A For All Square Matrices
September 14th 2010, 07:22 AM #1
Newbie
Joined
Mar 2010
From
Regina, SK, Canada
Posts
3
Identity Matrix - Show That AI=IA=A For All Square Matrices
Hey all,
I've got a question that I'm having a little trouble with. I understand what th... | 4 | [
-0.0380859375,
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0.0... | 26,537 | 26537 | |
A Mean Value Related to Primitive Roots and Golomb’s Conjectures
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 908273, 5 pages
http://dx.doi.org/10.1155/2014/908273
Research Article
A Mean Value Related to Primitive Roots and Golomb’s Conjectures
^1Department of Mathematics, Northwest University, Xi’a... | 5 | [
-0.056396484375,
0.05810546875,
0.0133056640625,
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-0.0206298828125,
-0.0908203125,
-0.10400390625,
-0.049072265625,
-0.0223388671... | 26,538 | 26538 | |
Proof that \lim_{x->0}\frac{x^2.sin(\frac{1}{x})}{sin(x)}=0
October 31st 2012, 07:02 AM
Chipset3600
Proof that \lim_{x->0}\frac{x^2.sin(\frac{1}{x})}{sin(x)}=0
Hello MHF, please help me how to proof that $\lim_{x->0}\frac{x^2.sin(\frac{1}{x})}{sin(x)}=0$, the book says that L'Hospital Rule doenst work in this ca... | 5 | [
-0.058837890625,
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-0.005645751953125,
-0.00128173828125,
0.073... | 26,539 | 26539 | |
Using the Golden Section Search Method to Minimize the Sum of Absolute Deviations
April 28, 2013
By Eric Cai - The Chemical Statistician
Introduction
Recently, I introduced the golden search method – a special way to save computation time by modifying the bisection method with the golden ratio, and I illustrated ho... | 5 | [
-0.05029296875,
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0.0051... | 26,540 | 26540 | |
A New Multiphase Soft Segmentation with Adaptive Variants
Applied Computational Intelligence and Soft Computing
Volume 2013 (2013), Article ID 921721, 9 pages
http://dx.doi.org/10.1155/2013/921721
Research Article
A New Multiphase Soft Segmentation with Adaptive Variants
^1School of Information Science & Engineering... | 4 | [
-0.03369140625,
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0.0927734375,
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... | 26,541 | 26541 | |
A couple questions...Help please.
July 24th 2010, 04:16 PM #1
A couple questions...Help please.
Hey everybody I have a couple questions, most of them I have the answers for but a couple I don't I really hope someone can help me with the questions. Thanks
1. Solve the equation: -1/8cos^-1(x) + tan^-1(-1)= -pi... | 4 | [
-0.011962890625,
0.0032196044921875,
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0.07373046875,
0.015869140625,
-0.007537841796875,
0.11376953125,
-0.012939453125,
0.02587890625,
-0.0196533203125,
-0.07861328125,
0.041259765625,
-0.025024414062... | 26,542 | 26542 | |
Series/Convegence tests! need help on review problems for test!
October 29th 2007, 09:34 PM
xfyz
Series/Convegence tests! need help on review problems for test!
1. A certain ball has the property that each time it falls from a height h onto a hard, level surface, it rebounds to a height rh, where 0 < r < 1. Supp... | 5 | [
-0.043212890625,
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-0.016845703125,
0.021240234375,
... | 26,543 | 26543 | |
Parallel Neural Networks - Carving up the task
Intro
Over a couple of blogs I'll break down the process of getting the best performance out of a parallel architecture for processing neural networks.
A few points before I begin:
First let me say that I am only going to look at Feed Forward - Back Propagation networks ... | 4 | [
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0.043212890625,
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0.06884765625,
-0.0... | 26,544 | 26544 | |
Hollow Cylinder volume
February 17th 2010, 05:04 PM #1
Hollow Cylinder volume
Does anyone know the equation to find the volume of the solid material that makes up a hollow cylinder.
I know the height, outer diameter, and thickness.
What equation will give me the volume of just the material that makes up... | 4 | [
-0.040771484375,
0.036865234375,
0.0299072265625,
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0.038330078125,
0.03759765625,
-0.... | 26,545 | 26545 | |
99 questions/46 to 50
From HaskellWiki
< 99 questions
(Difference between revisions)
m (→Problem 48)
← Older edit
... | 5 | [
-0.08056640625,
0.09716796875,
0.057861328125,
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0.01300048828125,
0.0260009765625,
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... | 26,546 | 26546 | |
The Problem of Image Recovery by the Metric Projections in Banach Spaces
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 817392, 6 pages
http://dx.doi.org/10.1155/2013/817392
Research Article
The Problem of Image Recovery by the Metric Projections in Banach Spaces
^1Department of Information Science, To... | 5 | [
-0.07470703125,
-0.012451171875,
0.000629425048828125,
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-0.01263427734375,
-0.... | 26,547 | 26547 | |
Find the minimum & maximum area of a box!
April 13th 2011, 08:53 AM #1
Junior Member
Joined
Apr 2011
Posts
30
Find the minimum & maximum area of a box!
Here's another question Ive come across during revision
So
Volume is
$w*d*h = 32000$
$w^2*h = 32000$
$h = \frac{32000}{w^2}$
... | 5 | [
0.08056640625,
0.034423828125,
-0.021728515625,
0.04541015625,
-0.0302734375,
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0.107421875,
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0.0576171875,
-0.09375,
0.049560546875,
0.034912109375,
-0.01483154296... | 26,548 | 26548 | |
Model Independent MRE Data Analysis
Computational and Mathematical Methods in Medicine
Volume 2013 (2013), Article ID 912920, 11 pages
http://dx.doi.org/10.1155/2013/912920
Research Article
Model Independent MRE Data Analysis
^1Hokkaido University, Sapporo 060-0810, Japan
^2Inha University, Incheon 402-751, Republic... | 4 | [
-0.0458984375,
-0.11083984375,
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0.05859375,
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-0.06298828125,
0.002288818359375,
-0.031494140625,
-0.0534667968... | 26,549 | 26549 | |
Real quick derivative answer and maybe explain?
February 18th 2010, 08:33 AM
mib7289
Real quick derivative answer and maybe explain?
Yesterday in my calc class I possed a derivative problem to my professor who spent 40 mins on the problem... burned all class and didnt come up with an answer (Angry) so I ask you ... | 5 | [
0.02099609375,
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0.064453125,
-0.056884765625,
-0.... | 26,550 | 26550 | |
Need help for convergence/integrals..
December 15th 2010, 07:12 AM #1
Junior Member
Joined
Dec 2010
From
Macedonia
Posts
29
Hello i really need some help with these:
1. Find out if they are convergent - and if so find the SUM.
2. Find the absolute/partial convergence or divergence:
... | 5 | [
-0.0025482177734375,
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-0.068359375,
-0.00430... | 26,551 | 26551 | |
Exact Solutions for the Axial Couette Flow of a Fractional Maxwell Fluid in an Annulus
ISRN Mathematical Physics
VolumeΒ 2012Β (2012), Article IDΒ 209678, 15 pages
http://dx.doi.org/10.5402/2012/209678
Research Article
Exact Solutions for the Axial Couette Flow of a Fractional Maxwell Fluid in an Annulus
^1Abdus Sal... | 5 | [
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-0.0026550292... | 26,552 | 26552 | |
partial differential equation
April 5th 2010, 05:09 PM
vuze88
partial differential equation
A function $f$ of two variables is said to be homogeneous of degree n if $f(tx,ty)=t^nf(x,y)$ whenever $t>0$.
Show that such a function $f$ satisfies the equation $x\frac{\partial f}{\partial x}+y\frac{\partial f}{\p... | 4 | [
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the encyclopedic entry of mathematical physics
In
mathematical physics
, especially as introduced into
statistical mechanics
and
thermodynamics
by
J. Willard Gibbs
in 1878, an
ensemble
(also
statistical ensemble
or
thermodynamic ensemble
) is an idealization consisting of a large number of mental copies (... | 4 | [
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-0.05078125,
-0.06103515625,
-0.06787109375,
0.005828857421875,
0.0280761... | 26,554 | 26554 | |
Time-Space Fractional Heat Equation in the Unit Disk
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 364042, 7 pages
http://dx.doi.org/10.1155/2013/364042
Research Article
Time-Space Fractional Heat Equation in the Unit Disk
^1Institute of Mathematical Sciences, University of Malaya, 50603 Kuala Lumpur,... | 5 | [
-0.095703125,
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0.016845703125,
-0.05981445... | 26,555 | 26555 | |
Dynamic Behaviors of Holling Type II Predator-Prey System with Mutual Interference and Impulses
Discrete Dynamics in Nature and Society
Volume 2014 (2014), Article ID 793761, 13 pages
http://dx.doi.org/10.1155/2014/793761
Research Article
Dynamic Behaviors of Holling Type II Predator-Prey System with Mutual Interfere... | 5 | [
-0.036865234375,
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very quick modulo question
What is 10 x -38 mod 11? What is 16 x -80 mod 16? What is 278-421 mod 19?
$10\times -38 \equiv -1 \times -38 \equiv 5 \mod 11$ $16\times -80 \equiv 0 \times -80 \equiv 0 \mod 16$ $278\times -421 \equiv 12 \times -3 \equiv 17 \mod 19$
Thanks Shouldnt i get numerical answers? I got 9 for the ... | 4 | [
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-0.0... | 26,557 | 26557 | |
Definition of Limits
September 18th 2007, 04:48 PM
jikiami
Definition of Limits
So i know the definition (the epsilon, delta one)... i know how to use, but when i'm given an exercise which i have to factorice (sp?) like for example (x^2 - 9) which turns to |(x+3)(x-3)| then
i have to do something else, and i... | 5 | [
0.00604248046875,
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0.0240478515625,
-0... | 26,558 | 26558 | |
Another Linear Approximation Question
September 10th 2007, 10:35 PM #1
Newbie
Joined
Aug 2007
Posts
7
Another Linear Approximation Question
I don't even know where to start with this question
Question:
A useful linear approximation to
1/(1+tan x)
can be obtained by combining the approxim... | 4 | [
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0.062255859375,
-0.021240234... | 26,559 | 26559 | |
Maximum Likelihood Question
March 6th 2011, 03:34 AM #1
Newbie
Joined
Mar 2011
Posts
7
Maximum Likelihood Question
Q. A bag contains sequentially numbered lots (1,2...N). Lots are drawn at random (each lot has the same probability of being drawn). Two lots are drawn without replacement and are observed t... | 5 | [
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0.06884765625,
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0.0286865234375,
0.095703125,
0.072265625,
... | 26,560 | 26560 | |
-Nonconforming Finite Element Method for Incompressible Miscible Displacement Problem in Porous Media
ISRN Applied Mathematics
Volume 2013 (2013), Article ID 498383, 7 pages
http://dx.doi.org/10.1155/2013/498383
Research Article
A Broken -Nonconforming Finite Element Method for Incompressible Miscible Displacement Pr... | 4 | [
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0.0082397... | 26,561 | 26561 | |
[SOLVED] How to change the base of y=A(1.3)^-t
April 27th 2009, 12:13 PM
tleave2000
[SOLVED] How to change the base of y=A(1.3)^-t
The question says:
" $y=A(1.3)^{-t}$
By changing the base of the exponent to e, express y in terms of A, e and t."
I tried:
$y=A(1.3)^{-t}\Rightarrow\frac{y}{A}=1.3... | 4 | [
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Integrals Example Number 6
Integrals Example Number 6 The next thing that we’re going to do is the first one involving a square root so we’re going to have x5/2- 5/x4vx dx. So the first thing we’re going to do is try to
simplify this x5 this is going to stay the same we’re going to eliminate this fractions by moving th... | 5 | [
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0.1171875,
-0.0917... | 26,563 | 26563 | |
Factorisation
December 7th 2008, 11:12 AM #1
Junior Member
Joined
Nov 2008
Posts
25
Factorisation
Hi,
I've a question on my assignment paper I just want to check to make sure I'm doing it right.
Q: Factorise the numerator and denominator of each of the following and then cancel out any common f... | 4 | [
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0.055908203125,
-0.02233886... | 26,564 | 26564 | |
Mathematical induction help
March 30th 2013, 07:48 AM #1
Newbie
Joined
May 2010
Posts
7
Mathematical induction help
$\frac{1}{1*2} + \frac{1}{2*3} + \frac{1}{3*4} + ... + \frac{1}{(n(n+1))} = \frac{n}{n+1}$
I have evaluated it for 1:
$\frac{1}{(1(1+1))} = \frac{1}{1+1} = \frac{1}{2}$
same ... | 4 | [
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0.... | 26,565 | 26565 | |
Surrogate-Assisted Multiobjective Evolutionary Algorithms for Structural Shape and Sizing Optimisation
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 695172, 13 pages
http://dx.doi.org/10.1155/2013/695172
Research Article
Surrogate-Assisted Multiobjective Evolutionary Algorithms for Structural Sh... | 4 | [
-0.047119140625,
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0.0186767578125,
-0.0281982421875,
0.0673828125,
0.01086425... | 26,566 | 26566 | |
Linear transformation orthogonal projection formula.
January 27th 2013, 10:38 PM
mcleja
Linear transformation orthogonal projection formula.
I have an orthonormal basis for the subspace defined by a plane which is [[2/sqrt(5),1/sqrt(5),0],[2/(3*sqrt(5)),-4/(3*sqrt(5)),sqrt(5)/3]] but i need to find a formula for... | 5 | [
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-0.007293701171875,
-0.055908... | 26,567 | 26567 | |
velocity acceleration
September 15th 2005, 05:02 PM #1
matiishere
Guest
help!
find the speed required to throw a ball straight up and have it return in 6 seconds later. air resistance in neglectable.
How high does the ball go?
so how in the world do u do this?
hmmmm
i think that takes a little ... | 4 | [
0.039794921875,
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0.0137939453125,
-0.0052490234375,
0.05737304... | 26,568 | 26568 | |
Bending Response of Cross-Ply Laminated Composite Plates with Diagonally Perturbed Localized Interfacial Degeneration
The Scientific World Journal
Volume 2013 (2013), Article ID 350890, 13 pages
http://dx.doi.org/10.1155/2013/350890
Research Article
Bending Response of Cross-Ply Laminated Composite Plates with Diagon... | 4 | [
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0.10595703125,
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0.03076171875,
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-0.035888671875,
0.0296630859375,
0.02099... | 26,569 | 26569 | |
A Review of Definitions for Fractional Derivatives and Integral
Mathematical Problems in Engineering
Volume 2014 (2014), Article ID 238459, 6 pages
http://dx.doi.org/10.1155/2014/238459
Review Article
A Review of Definitions for Fractional Derivatives and Integral
^1Department of Applied Mathematics, IMECC-UNICAMP, ... | 4 | [
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0.004119... | 26,570 | 26570 | |
Multiresolution Analysis Using Wavelet, Ridgelet, and Curvelet Transforms for Medical Image Segmentation
International Journal of Biomedical Imaging
Volume 2011 (2011), Article ID 136034, 18 pages
http://dx.doi.org/10.1155/2011/136034
Research Article
Multiresolution Analysis Using Wavelet, Ridgelet, and Curvelet Tra... | 4 | [
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0.0040283203125,
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0.00677490234375,... | 26,571 | 26571 | |
proof for an equation
April 28th 2008, 03:46 AM #1
Newbie
Joined
Apr 2008
Posts
4
proof for an equation
I have this equation here:
x^2 + y^2 + z^2 = xy + xz + yz
I need to somehow prove that the equation is true only when all three variables are equal, i.e., x = y = z.
I would appreciate a... | 4 | [
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... | 26,572 | 26572 | |
HELP! Arithmetic/Geometric sequence questions, assignment due tomorrow
February 26th 2008, 10:16 PM #1
Newbie
Joined
Feb 2008
Posts
8
HELP! Arithmetic/Geometric sequence questions, assignment due tomorrow
1. Write an expression, in simplified form, for the general term of the sequence in which the first ... | 4 | [
-0.056884765625,
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0.0859375,
-0.059326171875,
-0.0211181640625,
-0.00860595703125,
-0.055... | 26,573 | 26573 | |
RPCA: A Novel Preprocessing Method for PCA
Advances in Artificial Intelligence
Volume 2012 (2012), Article ID 484595, 7 pages
http://dx.doi.org/10.1155/2012/484595
Research Article
RPCA: A Novel Preprocessing Method for PCA
^1Department of Computer Engineering, Science and Research Branch, Islamic Azad University, T... | 4 | [
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0.0712890625,
0.... | 26,574 | 26574 | |
[SOLVED] Evaluating this indefinite integral
March 3rd 2009, 11:53 AM #1
Member
Joined
Oct 2008
Posts
242
[SOLVED] Evaluating this indefinite integral
The indefinite integral of x^3sq root of x^2+1. I have no idea where to even start. I'm guessing I'd have to use substitution of some sort to find this an... | 5 | [
-0.0164794921875,
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0.0703125,
-0.01239013671875,
-0.017822265625,
0.02734375,
0.053955... | 26,575 | 26575 | |
Quick easy question.
February 4th 2008, 04:22 PM
white_cap
Quick easy question.
Solve.
l 2x +1 l = 4
I've never done 'exact; values before any help would be awsome. i've got 3/2 and -5/2, or is it 5/2?
Thanks.
February 4th 2008, 05:14 PM
Cursed
Quote:
Well, your original answers of ${\... | 4 | [
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-0.107421875,
0.07275390625,
-0.0277099609375,
-0.0... | 26,576 | 26576 | |
Operator norm
April 16th 2010, 07:13 AM #1
Newbie
Joined
Oct 2008
Posts
17
Operator norm
I'm a bit confused about what an operator norm is.
Can someone explain it to me using a simple matrix?
What value would you use for the Euclidean norm (x) when it is multiplied by A? (before taking the supr... | 4 | [
0.01068115234375,
-0.047119140625,
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0.06005859375,
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0.0206298828125,
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-0.0247802734375,
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0.14453125,
0.1279296875,
-0.11376953... | 26,577 | 26577 | |
Mixed Cooperation MAC Protocol with Sleep Mechanism for Data Acquisition in Wireless Machine-to-Machine Networks
International Journal of Distributed Sensor Networks
Volume 2013 (2013), Article ID 360267, 10 pages
http://dx.doi.org/10.1155/2013/360267
Research Article
Mixed Cooperation MAC Protocol with Sleep Mechani... | 4 | [
-0.040283203125,
0.064453125,
0.0291748046875,
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0.0007781982421875,
0.052978515625,
-0.03662109375... | 26,578 | 26578 | |
How do I show that adj(A) is invertible?
April 13th 2010, 10:18 AM #1
Newbie
Joined
Mar 2010
Posts
2
How do I show that adj(A) is invertible?
The question I'm working on is basically this:
If A is an invertible nxn matrix, show that adj(A) is also invertible and that:
(adj A)^-1 = (1/detA) A = ... | 4 | [
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0.01519775390625,
0.016357421875,
0.04956054... | 26,579 | 26579 | |
Forcing a file’s CRC to any value
By modifying any 4 consecutive bytes in a file, you can force the file’s CRC-32 hash to any value you choose. This technique is useful for vanity purposes, and also shows that CRC-32 is extremely
malleable and unsuitable for protecting a file from intentional modifications.
This page... | 4 | [
-0.037841796875,
0.078125,
-0.10205078125,
-0.03955078125,
0.00005054473876953125,
-0.0654296875,
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0.1318359375,
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-0.06005859375,
-0.09228515625,
-0.07177734375,
0.... | 26,580 | 26580 | |
Analysis problem on Sequences
April 1st 2009, 01:44 AM #1
Newbie
Joined
Mar 2009
Posts
14
Analysis problem on Sequences
Hi guys, just got a question of Analysis on Sequences.
a sequence e(n) (sry dun know how to type (en) little n.
ok....
e(n)=(1+1/n)^n
(a). Show that e(n) is bounded a... | 4 | [
0.0252685546875,
0.00482177734375,
0.01385498046875,
-0.000942230224609375,
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0.0400390625,
0.03857421875,
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0.054931640625,
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-0.0181884765625,
0.0002574920654296875,
-0.0084228515625,
0.0230712... | 26,581 | 26581 | |
Optimization Problem with Triangles
May 8th 2011, 07:14 PM #1
Junior Member
Joined
Apr 2011
Posts
68
Optimization Problem with Triangles
hey guys can you help me here.
A right triangle has area 50.
a) Express the hypotenuse as a function of a single variable, and
b) Find the shortest possibl... | 5 | [
0.01513671875,
0.1826171875,
-0.02587890625,
0.00439453125,
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Dominated convergence theorem
January 18th 2009, 01:28 PM #1
Newbie
Joined
Jan 2009
Posts
3
Dominated convergence theorem
Hi
i am trying to solve a past exam paper question for an exam i have next week. Ive spent a while trying to do it but i dont think its right. The problem with this question is th... | 5 | [
-0.0498046875,
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-0.076171875,... | 26,583 | 26583 | |
Algebra Word Problem Help
Posted by Katlyn on Monday, August 3, 2009 at 11:29pm.
I got 2 more intense problems like this. Can someone show me the way for each step so I can follow along with the other problems I have to do? ThankS!
A gardener has 40 feet of fencing with which to enclose a garden adjacent to a long ex... | 4 | [
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Hard Trig Proof
June 23rd 2010, 03:32 PM #1
Member
Joined
Mar 2010
Posts
78
Hard Trig Proof
$tanxsinx + cosx = \frac{1}{cosx}$
$RS = \frac{1}{cosx}$
$= \frac{tanx}{sinx}$
$= \frac{sinx}{sinxcosx}$
$= \frac{sinxtanx}{sinxcosxtanx}$
$= \frac{sinxtanx}{sinxsinx}$
$= \frac{sinxt... | 4 | [
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0.0703125,
0... | 26,585 | 26585 | |
Cumulative Probability & Mean (Discrete & Continuous)
October 21st 2010, 01:59 PM #1
Newbie
Joined
Oct 2010
Posts
2
Hi Members,
I am in a panic trying to work out the formulas below, I am unsure if I have posted in the correct place, my lecturer said it is basic primary statistics, (which I can’t bel... | 5 | [
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-0.07324... | 26,586 | 26586 | |
Annuity problem
August 18th 2009, 06:27 PM #1
Junior Member
Joined
Nov 2006
Posts
42
Annuity problem
Hi guys. Would be much appreciated if somebody could give me a start on this problem, I'm really stuck on it.
A washing machine, cash price $ 850 is available on the following terms:
A deposit of... | 5 | [
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... | 26,587 | 26587 | |
Data Visualization Using Rational Trigonometric Spline
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 531497, 10 pages
http://dx.doi.org/10.1155/2013/531497
Research Article
Data Visualization Using Rational Trigonometric Spline
School of Mathematical Sciences, Universiti Sains Malaysia, 11800 Penang,... | 4 | [
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0.0162353515625,
-0.0659179... | 26,588 | 26588 | |
Regularity Criterion for the Nematic Liquid Crystal Flows in Terms of Velocity
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 234809, 4 pages
http://dx.doi.org/10.1155/2014/234809
Research Article
Regularity Criterion for the Nematic Liquid Crystal Flows in Terms of Velocity
^1Department of Mathematics... | 5 | [
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... | 26,589 | 26589 | |
Exponents, Roots, Factorization of Whole Numbers: Proficiency Exam
Exercise 1
((Reference)) In the number 8585, write the names used for the number 8 and the number 5.
Exercise 2
((Reference)) Write using exponents. 12×12×12×12×12×12×1212×12×12×12×12×12×12 size 12{"12" times "12" times "12" times "12" times "12" tim... | 4 | [
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0.0510... | 26,590 | 26590 | |
Deconvolution Filtering for Nonlinear Stochastic Systems with Randomly Occurring Sensor Delays via Probability-Dependent Method
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 814187, 12 pages
http://dx.doi.org/10.1155/2013/814187
Research Article
Deconvolution Filtering for Nonlinear Stochastic Systems ... | 4 | [
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[SOLVED] Onto linear transfomation
May 9th 2010, 11:43 AM
dwsmith
[SOLVED] Onto linear transfomation
Let V be the real vector space of all real 2x3 matrices, and let W be the real vector space of all real 4x1 column vectors. If T is a linear transformation from V onto W, what is the dimension of
the subspace... | 5 | [
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0.03686523437... | 26,592 | 26592 | |
Dynamics of a Delay-Varying Computer Virus Propagation Model
Discrete Dynamics in Nature and Society
Volume 2012 (2012), Article ID 371792, 12 pages
http://dx.doi.org/10.1155/2012/371792
Research Article
Dynamics of a Delay-Varying Computer Virus Propagation Model
^1College of Computer, Jiangsu Normal University, Xu... | 5 | [
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Graph of x^2 + y^2 = xy
May 13th 2009, 04:14 PM #1
Junior Member
Joined
Dec 2007
Posts
53
Graph of x^2 + y^2 = xy
I'm curious as to how the graph of x^2 + y^2 = xy will look in the 2nd and 4th quadrent of the cartesian plane (ONLY THOSE quadrents).
Any help with this problem is much appreciated.
... | 4 | [
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0.055419921875,
-0.07861328125,
-0.030639... | 26,594 | 26594 | |
Existence and Uniqueness of the Positive Definite Solution for the Matrix Equation
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 216035, 4 pages
http://dx.doi.org/10.1155/2013/216035
Research Article
Existence and Uniqueness of the Positive Definite Solution for the Matrix Equation
Department of Mathe... | 5 | [
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-0.04... | 26,595 | 26595 | |
Proof by induction
December 21st 2007, 06:28 AM #1
Newbie
Joined
Dec 2007
Posts
6
Proof by induction
I would appreciate help with a question form OCR book further pure 1
"An emerging currency has two kinds of bank note, one for 5 schenkels and one for 9 schenkels. Prove by induction that every accoun... | 5 | [
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-0.069335937... | 26,596 | 26596 | |
Find value of k for which the series converges.
January 16th 2010, 03:33 PM
General
Find value of k for which the series converges.
Hello
Problem:
For which positive integer k is the following series convergent?
$\sum_{n=1}^{\infty} \frac{(n!)^2}{(kn)!}$
The Ratio Test seems a good choice.
... | 5 | [
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0.047607421875,
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0.02490234375,
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0.008056640625,
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0.044189453125,
... | 26,597 | 26597 | |
Compute the steady-state matrix of the stochastic matrix.
April 29th 2012, 06:12 AM
foz124
Compute the steady-state matrix of the stochastic matrix.
3/5 0 0
0 1 1/8
2/5 0 7/8
Compute the steady-state matrix of the stochastic matrix. (Having trouble figuring this question out, could someone ple... | 5 | [
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0.03857421875,
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-0.07275390625,
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0.103515625,
-0.08007812... | 26,598 | 26598 | |
Fermat's little theorem
July 16th 2011, 02:40 PM
alexmahone
Fermat's little theorem
Use Fermat's theorem to show that for any positive integer n, the integer $n^{37}-n$ is divisible by 383838.
My attempt:
383838=(37)(19)(13)(7)(3)(2)
If 37 does not divide n, then by FLT, $n^{36} \equiv 1\ (mod\ 37... | 5 | [
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0.032958984375... | 26,599 | 26599 |