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the encyclopedic entry of UNIQUAC UNIQUAC (short for UN iversal QUA si C hemical) is an activity coefficient model in which the activity coefficients, γ, of the components in a chemical mixture can be related through their molar fraction, x [i] . Equations In UNIQUAC the activity coefficients of the i^th com...
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0.999...=1? Seriously? The article found on Wikipedia.org, on the topic "0.999..." seems to accept that 0.999...=1. I don't. The civilized world bases its numerical system on groups of ten: 1 2 3 4 5 6 7 8 9 10 Using this method, 0.9 = 9/10, of course. But what if a civilization decided to base its numerical system o...
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Probability and Statistics June 1st 2008, 04:37 PM #1 Newbie Joined Apr 2008 Posts 7 Probability and Statistics Here's my problem, A certain Lottery has 49 numbers, six of which are the winning numbers for a particular game. To play the game each participant choses six numbers. What is the probabili...
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Math Help July 6th 2008, 03:10 PM #1 Newbie Joined Jul 2008 Posts 16 tangent line "Sketch the circles x²+y²=1 and y²+(x-3)²=4. There is a line with positive slope that is tangent to both circles. Find the points at which the tangent line touches each circle." solve using implicit differentiation ...
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[SOLVED] Integration February 25th 2009, 12:01 PM #1 Newbie Joined Feb 2009 From Wyoming Posts 13 [SOLVED] Integration I am integrating by parts. I do not know what let u and v be. I am also stuck on the radical. e^{sqre rt} 3s+9 ds I want to let u = 3s+9 and v = e^rt x can it be done ...
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Triangle inequality induction problem August 26th 2011, 02:58 AM #1 Member Joined Jul 2011 Posts 196 Triangle inequality induction problem Prove by induction that: $|z_{1}+z_{2}+...+z_{n}| \leq |z_{1}|+|z_{2}|+...+|z_{n}|$ $n \in \mathbb{N}$ and $n\geq 1$ I seem to understand the component...
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computin multiple integral with ugly - but positive - function (mathematica/matlab) July 7th 2012, 10:53 AM #1 Junior Member Joined Aug 2008 Posts 74 Thanks 1 computin multiple integral with ugly - but positive - function (mathematica/matlab) hello everyone, I'm trying to compute a triple integr...
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Finding for interval of m in quadratic equation. August 23rd 2011, 10:44 PM #1 Junior Member Joined Aug 2011 Posts 43 Finding for interval of m in quadratic equation. Find the interval in which 'm' lies so that the expression $\frac{mx^2+3x-4}{-4x^2+3x+m}$ can take all real values ,where x is rea...
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If x=3/4 and y=1/5, what is the value of sqrt(x^2 + 6x + 9) Author Message TAGS: ajay_gmat If x=3/4 and y=1/5, what is the value of sqrt(x^2 + 6x + 9) [#permalink] 25 Jul 2007, 03:18 Manage...
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Complex number equation March 12th 2011, 12:13 AM #1 Senior Member Joined Apr 2010 Posts 487 Complex number equation The question: Show that $|z_1 + z_2|^2 + |z_1 - z_2|^2 = 2|z_1|^2 + 2|z_2|^2$, for all complex numbers $z_1$ and $z_2$. I tried getting the LHS to match the RHS, but I've done som...
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Stability in a Simple Food Chain System with Michaelis-Menten Functional Response and Nonlocal Delays Abstract and Applied Analysis Volume 2013 (2013), Article ID 936952, 14 pages http://dx.doi.org/10.1155/2013/936952 Research Article Stability in a Simple Food Chain System with Michaelis-Menten Functional Response a...
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Completeness of Vector Space May 20th 2010, 08:22 AM #1 Junior Member Joined Jan 2010 Posts 32 Completeness of Vector Space Let $H$ be the space of sequences $(x(1),x(2),x(3),...)$ such that $\sum^{\infty}_{j=1}\frac{|x(j)|^2}{j^2}<\infty$, with inner product $<x,y>=\sum^{\infty}_{j=1}\frac{x(j)\overline...
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simple sigma operation question September 23rd 2012, 01:11 PM #1 Member Joined May 2012 From Toronto Posts 240 Thanks 1 simple sigma operation question How does one complete a summing operation where $a = 11$ and $b= 96$ $X= {8, 10, 9}$ and $Y= {108, 101,103,94}$ a sum like $i...
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Convert Nordictrack revolutions to miles   So I put on my 10th grade geometry hat and figured it out.  Here’s what I did.    Goal:   Use simple geometry to determine how many Nordictrack revolutions equal one mile.   First, measure the radius (r) of the encased wheel (this is the distance from the center to the ...
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Dividing Genetic Computation Method for Robust Receding Horizon Control Design Applied Computational Intelligence and Soft Computing Volume 2010 (2010), Article ID 168653, 10 pages http://dx.doi.org/10.1155/2010/168653 Research Article Dividing Genetic Computation Method for Robust Receding Horizon Control Design De...
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Find the equation, April 5th 2006, 01:17 PM #1 Newbie Joined Jan 2006 Posts 16 Find the equation, I thought this was a lil to simple and think my answer might be wrong :/ Determine the equation of the tangent to the curve at the given point (x+2)^2+(y-3)^2=29 P(3,5) tnkfub I thought th...
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Working with Trig identies to show that a triangle is a right triangle April 29th 2009, 05:47 PM #1 Newbie Joined Apr 2009 Posts 2 Working with Trig identies to show that a triangle is a right triangle Can someone please assist me with this questions? Thank you in advance for your assistance. If ang...
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An Existence Result for Nonlocal Impulsive Second-Order Cauchy Problems with Finite Delay Abstract and Applied Analysis Volume 2013 (2013), Article ID 724854, 8 pages http://dx.doi.org/10.1155/2013/724854 Research Article An Existence Result for Nonlocal Impulsive Second-Order Cauchy Problems with Finite Delay Schoo...
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Analyzing Electromagnetic Systems on Electrically Large Platform Using a GTM-PO Hybrid Method with Synthetic Basis Functions International Journal of Antennas and Propagation Volume 2014 (2014), Article ID 162421, 7 pages http://dx.doi.org/10.1155/2014/162421 Research Article Analyzing Electromagnetic Systems on Elec...
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Formula for f of g October 9th 2012, 10:54 AM #6 Super Member October 9th 2012, 10:40 AM #5 October 9th 2012, 10:34 AM #4 October 9th 2012, 10:31 AM #3 Member October 9th 2012, 10:09 AM #2 October 9th 2012, 09:51 AM #1 Member Re: Formula for f of g Hello, Eraser147! $f\!\!\circ\!g \;=\;f(g(x))$ . . . $=...
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Fun with metrics September 23rd 2011, 10:11 PM SlipEternal Fun with metrics I'm a first year grad student. After listening to my algebra professor's explanation that for any finite set A, P(A) is a vector space under the operation of symmetric difference over the field $ \mathbf{Z}_2$. It got me to wondering...
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Modular Arithmetic April 27th 2010, 11:48 PM #1 Newbie Joined Apr 2010 Posts 2 Modular Arithmetic Hi, Just need help with a couple of Q's. Using Euclids algorithm, find: 3568a = 1 mod 1127 and Use Euclids algorithm to find x and y so 6804x +1343y = 1 Ty for any help. Las...
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Simple Maths/Physics Simultaneous Equation. May 13th 2013, 04:41 AM #1 Newbie Joined May 2013 From Australia Posts 3 Simple Maths/Physics Simultaneous Equation. Given the following two equations: m1*u = m1*v1 + m2*v2 m1*u^2 = m1*v1^2 + m2*v2^2 Taking this as a simultaneous equation, an...
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Proof by Induction - Divisibility Proofs September 20th 2011, 11:50 AM #1 Member Joined Jul 2011 Posts 140 Proof by Induction - Divisibility Proofs Q. Prove by induction that... Please see attachment. The end result should be divisible by 6, but it hasn't worked out that way for me. Can someone...
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Mechanics forces acting on a object in a slope Attachment 25548 answer to q15 is 2.42ms can anyone solve these questions please Re: Mechanics forces acting on a object in a slope Quote: Attachment 25548 answer to q15 is 2.42ms can anyone solve these questions please First, one question per thr...
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Area of the Triangle (in 3D) February 5th 2009, 06:19 AM #1 Area of the Triangle (in 3D) Hi everyone, so here's the problem: We got a triangle in a 3D room defined by the coordinates: A = (1, 2, -1) B = (3, 1, 4) C = (0, 2, 3) What's the area of the triangle? ---- If it were just ...
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Field Theory - Dummit and Foote Ch 13 - Exercise 1, page519 September 20th 2013, 06:24 PM #1 Field Theory - Dummit and Foote Ch 13 - Exercise 1, page519 I am studying Dummit and Foote Chapter 13: Field Theory. Exercise 1 on page 519 reads as follows: ================================================== ==...
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Related rates: urgent January 6th 2007, 03:43 PM #1 Newbie Joined Jan 2007 Posts 2 Can anyone help A baseball diamond has the shape of a square with sides 90 feet long. A player 30 feet from third base is running at a speed of 28 feet per second. At what rate is the player’s distance s from the ho...
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Expected Value September 24th 2009, 06:43 PM #1 Senior Member Joined Jan 2009 Posts 290 Expected Value A sack contains 20 products, where two are defective. Given that five products are chosen randomly, determine the expected number of defective products. Let $P_k$ be the probability of there being ...
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Monotonicity of Eventually Positive Solutions for a Second Order Nonlinear Difference Equation Discrete Dynamics in Nature and Society Volume 2013 (2013), Article ID 635149, 5 pages http://dx.doi.org/10.1155/2013/635149 Research Article Monotonicity of Eventually Positive Solutions for a Second Order Nonlinear Differ...
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Counting Principles, card 1..50 and one number is twice the other September 26th 2010, 03:17 PM #1 Member Joined May 2009 Posts 129 Counting Principles, card 1..50 and one number is twice the other There are 50 cards numbered from 1 to 50. Two different cards are chosen at random. What is the probabi...
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Comparison Theorems for the Position-Dependent Mass Schrรถdinger Equation ISRN Mathematical Physics Volumeย 2012ย (2012), Article IDย 461452, 11 pages http://dx.doi.org/10.5402/2012/461452 Research Article Comparison Theorems for the Position-Dependent Mass Schrรถdinger Equation Theoretical Physics Department, FFEKS...
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Vector Proof Help November 17th 2010, 04:43 PM Lord Voldemort Vector Proof Help First off, sorry if this is in the wrong section. I was unsure of where to put it, and if there's a more suitable location please point me to it and I'll ask a mod to move it. Anyways, this appeared on my exam today, and I couldn...
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Homework Help Posted by Cho on Friday, August 26, 2011 at 11:42pm. the product of two even consecutive integers is 224. find the integers • math - Martin, Friday, August 26, 2011 at 11:44pm 14 and 16. • math - Cho, Friday, August 26, 2011 at 11:47pm how do u figure that out? • math - Cho, Friday, Au...
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[ -0.05126953125, 0.09375, -0.00872802734375, -0.004638671875, 0.0179443359375, 0.052734375, 0.0458984375, 0.047119140625, -0.039306640625, -0.0306396484375, 0.048583984375, 0.0400390625, 0.00726318359375, 0.000507354736328125, 0.035400390625, -0.00872802734375, -0.04345703125, 0.017...
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For what values of r does the function y = e^rx satisfy July 27th 2010, 05:22 PM #1 Junior Member Joined Jun 2010 Posts 42 For what values of r does the function y = e^rx satisfy For what values of r does the function y = e^rx satisfy the equation y'' + 4y' - 45y = 0? Solve $r^2+4r-45=0$ do you know...
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Polar Coordinate.. Find the area inside the larger loop and outside the smaller loop of the limacon r= 1/2 + Cos[x] The region between the loops would be: $2\left[\int_{0}^{\frac{2\pi}{3}}\frac{1}{2}(\frac{1}{2}+c os{\theta})^{2}d{\theta}-\int_{\frac{2\pi}{3}}^{\pi}\frac{1}{2}(\frac{1}{2} +cos{\theta})^{2}d{\ theta}\r...
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[ 0.0235595703125, -0.08740234375, -0.1064453125, -0.045654296875, 0.043701171875, -0.0927734375, -0.0245361328125, 0.09716796875, 0.0133056640625, 0.0225830078125, -0.000881195068359375, 0.0693359375, -0.0206298828125, 0.01434326171875, -0.002197265625, -0.0019073486328125, -0.0292968...
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A question regarding rectangle ratios. _________________ Just so you know, I am blind. I pledge allegiance to the whole of humanity, and to the world in which we live: one people under the heavens, indivisible, with Liberty and Equality for all. My Shapeways Shop Removing the largest square from a rectangle with ra...
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Codes over Graphs Derived from Quotient Rings of the Quaternion Orders ISRN Algebra VolumeΒ 2012Β (2012), Article IDΒ 956017, 14 pages http://dx.doi.org/10.5402/2012/956017 Research Article Codes over Graphs Derived from Quotient Rings of the Quaternion Orders ^1Departamento de MatemΓ‘tica, ICEx, UNIFAL, R. Gabriel ...
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Math Help April 3rd 2008, 01:08 PM #1 Logic Express the propositions $p\implies q$ and $q\wedge p$ using only $\downarrow$ and $\sim.$ $p\downarrow q,$ where $p$ and $q$ are propositions, it's defined by the following truth table: ------- Let $p_1,p_2,p_3,p_4,p_5,p_6$ be propositions such that $\...
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[ -0.02392578125, 0.0057373046875, 0.046142578125, -0.06689453125, 0.00138092041015625, 0.05322265625, 0.053466796875, -0.01318359375, 0.0024566650390625, 0.06005859375, -0.018798828125, -0.0693359375, 0.01220703125, 0.00119781494140625, 0.057861328125, 0.09326171875, -0.076171875, 0...
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Limit of multivariable function April 7th 2009, 12:15 PM #1 Newbie Joined Dec 2006 Posts 17 Limit of multivariable function The question asks to find the limit (x,y) -> (0,0) and this is the function: $\frac{x^2 sin(y)^2}{x^2 + 5y^2}$ so i tried approaching (0,0) from y=cx and i get this: $\f...
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[ -0.0101318359375, 0.0166015625, 0.016357421875, -0.025390625, 0.058349609375, 0.05615234375, -0.06396484375, -0.027587890625, 0.023681640625, -0.01513671875, 0.07958984375, 0.013427734375, -0.0888671875, 0.0703125, -0.031494140625, 0.056396484375, 0.0115966796875, -0.047607421875, ...
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Salt problem January 28th 2009, 12:06 PM #1 Junior Member Joined Aug 2007 Posts 71 Salt problem A tank with capacity of 400 gal of water originally contains 200 gal of water with 100 lb of salt in solution. Water containing 1 lb of salt per gallon is entering at a rate of 3 gal/ min, and the mixture ...
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Genral Term Hi, Find the genral term of the G.P with third term 1 and the seventh term 8? Thanks!!! The general term of any geometric sequence is given by Tn = $ar^{n-1}$ where clearly, $a$ is the first term and $r$ is the common ratio of the geometric progression. So we have here, T3=1 T7=8 i.e. $ar^2=1$............(...
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A Novel Algorithm for Intrusion Detection Based on RASL Model Checking Mathematical Problems in Engineering Volume 2013 (2013), Article ID 621203, 10 pages http://dx.doi.org/10.1155/2013/621203 Research Article A Novel Algorithm for Intrusion Detection Based on RASL Model Checking ^1School of Information Engineering...
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[ -0.035888671875, 0.027099609375, 0.01708984375, -0.006744384765625, 0.0142822265625, -0.05419921875, 0.05859375, -0.07666015625, 0.05419921875, 0.025390625, -0.004974365234375, 0.00933837890625, 0.13671875, 0.05712890625, -0.0830078125, -0.006195068359375, 0.015869140625, -0.069335...
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Quarter-Symmetric Nonmetric Connection on ISRN Geometry Volume 2012 (2012), Article ID 659430, 14 pages http://dx.doi.org/10.5402/2012/659430 Research Article Quarter-Symmetric Nonmetric Connection on -Sasakian Manifolds ^1Department of Mathematics, Dum Dum Motijheel Rabindra Mahavidyalaya, 208/B/2, Dum Dum Road, W...
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cyclic groups June 11th 2006, 10:13 AM #1 Junior Member Joined Feb 2006 From United Kingdom Posts 70 cyclic groups I have a problem in a textbook that is giving me trouble. Either I'm missing something or there is some sort of mistake in the question. The problem is with part (ii), the other parts se...
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prove H is an abelian group November 5th 2009, 05:51 PM #1 Junior Member prove H is an abelian group Last edited by apple2009; November 8th 2009 at 05:13 PM. Problem: Suppose $G$ is a group such that $g^2=e_G\quad\forall g\in G$. Prove that $G$ is abelian. Proof (1): Note that $g^2=e\implies g=g^{-1}$....
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[ -0.05908203125, 0.0849609375, 0.07861328125, 0.09619140625, -0.044677734375, -0.020263671875, 0.058349609375, -0.0654296875, -0.062255859375, -0.052978515625, 0.0289306640625, -0.041015625, -0.003326416015625, -0.08740234375, -0.022216796875, 0.09912109375, 0.028076171875, 0.018920...
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Accounting for Antenna in Half-Space Fresnel Coefficient Estimation International Journal of Geophysics Volume 2012 (2012), Article ID 138458, 11 pages http://dx.doi.org/10.1155/2012/138458 Research Article Accounting for Antenna in Half-Space Fresnel Coefficient Estimation Dipartimento di Ingegneria dell'Informazio...
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Show a function f is constant, given... February 27th 2009, 06:43 AM Rudipoo Show a function f is constant, given... Q: f from the the reals to the reals satisfies |f(x)-f(y)|<=|x-y|^2 (*), for all x,y in the reals. Show f is constant. A: My answer is this: Suppose, without loss of generality, that y>x...
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Convergence proof... December 20th 2011, 03:21 AM #1 Junior Member Joined Jan 2011 Posts 58 Convergence proof... I am a little stuck on the following: suppose that: 1) sum(n..infinity) (a_n)^2 and sum(n..infinity)(b_n)^2 converges, then prove sum(n..infinity) (a_n)*(b_n) converges. I am gues...
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[ -0.0654296875, -0.01544189453125, -0.00946044921875, 0.0654296875, -0.0213623046875, 0.057861328125, 0.007720947265625, 0.018310546875, 0.00860595703125, -0.115234375, -0.0162353515625, 0.006744384765625, 0.032958984375, -0.00469970703125, -0.06298828125, 0.07568359375, 0.1123046875,...
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Odds of passing a test. January 28th 2014, 05:18 PM #1 Member Joined Oct 2009 From Detroit Posts 157 Thanks 5 Odds of passing a test. An instructor gives her class a set of 10 problems with the information that the final exam will consist of a random selection of 5 of them. If a student has figur...
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Induction for Triangular numbers July 10th 2013, 09:55 PM #1 Junior Member Joined Jul 2013 From California Posts 56 Induction for Triangular numbers I have tried and tried, with no success. Instructor is useless, book is far more useless, there's nothing worse than online math class. I need to a...
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Quick conjugate clarifcation February 23rd 2011, 01:33 PM #1 Member Joined Nov 2010 Posts 119 Quick conjugate clarifcation Consider the function $f(x)=(18x+18h)(\sqrt{15x-3})-18x\sqrt{15x+15h-3}$ If you factor out an $18x$, then theres still a $(1+18h)$ in front of the first square root. Would the c...
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[ -0.000804901123046875, 0.002716064453125, 0.0673828125, 0.00543212890625, 0.0203857421875, 0.0118408203125, -0.050537109375, -0.09619140625, 0.01348876953125, -0.0201416015625, 0.10107421875, 0.0556640625, 0.0191650390625, 0.01708984375, 0.0010986328125, 0.039306640625, -0.0461425781...
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Using Objective Clustering for Solving Many-Objective Optimization Problems Mathematical Problems in Engineering Volume 2013 (2013), Article ID 584909, 12 pages http://dx.doi.org/10.1155/2013/584909 Research Article Using Objective Clustering for Solving Many-Objective Optimization Problems School of Computer Scienc...
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the encyclopedic entry of ordinary annuity The term annuity is used in finance theory to refer to any terminating stream of fixed payments over a specified period of time. This usage is most commonly seen in academic discussions of finance, usually in connection with the valuation of the stream of payments, taking into...
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[ -0.013427734375, 0.06884765625, -0.01361083984375, 0.028076171875, 0.009521484375, -0.00106048583984375, 0.0225830078125, 0.04150390625, 0.0595703125, 0.0255126953125, 0.060791015625, 0.023681640625, -0.026611328125, 0.009033203125, -0.0301513671875, -0.02685546875, -0.037109375, -...
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Multiple Positive Solutions for Nonlinear Fractional Boundary Value Problems The Scientific World Journal Volume 2013 (2013), Article ID 473828, 9 pages http://dx.doi.org/10.1155/2013/473828 Research Article Multiple Positive Solutions for Nonlinear Fractional Boundary Value Problems School of Mathematical Sciences,...
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Math Help If y'=0 on I some open interval. Then, y=C for some real number C. Proof: Let a<b be in I. Then consider [a,b]. The function y is differenciable fully on [a,b] because it is differenciable on I. Thus, y is continous on [a,b] and as said on (a,b). This tells us that y satisfies Lagrange's Mean Value Theorem. ...
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weak derivative November 20th 2011, 05:31 PM #1 Junior Member Joined May 2008 Posts 50 weak derivative I have the function f(x)= x+1 for x greater or equal to 0 and -x-1 for x less than 0 , I have to prove that f has no weak derivative. I computed <Df,g>= 2g(0)+\int_0^\infty g(x)dx - \int_{-\inf...
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Taylor polynomial of ODE September 11th 2010, 02:53 AM #1 Junior Member Joined May 2010 Posts 74 Taylor polynomial of ODE dy/dt = [-pi*cos(pi*t)-2ty]/[1+t^2] Find the fourth degree polynomial centred about 0 I know the taylor polynomial goes y(0) + hy'(0) + h^2/2y''(0) + h^3/6y'''(0) + h^4/24y'...
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[ -0.0233154296875, -0.01239013671875, 0.0062255859375, 0.031982421875, -0.0029296875, 0.051513671875, -0.06689453125, 0.0167236328125, -0.000659942626953125, -0.018310546875, 0.0888671875, -0.044677734375, 0.002044677734375, -0.09912109375, -0.029541015625, 0.0263671875, -0.080078125,...
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Mathematical Induction May 12th 2008, 07:46 AM bex23 Mathematical Induction I have a couple of questions that I a unsure on. The first part have done but hopefully you can confirm I have done this right the rest I am not sure on. Can you point me in the right direction. Suppose G is a group with elements a ...
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[ -0.06201171875, 0.051513671875, -0.0111083984375, 0.041748046875, -0.0634765625, -0.042724609375, 0.08837890625, -0.080078125, -0.0078125, -0.0017547607421875, -0.06640625, 0.003997802734375, 0.087890625, -0.00087738037109375, -0.029541015625, 0.1298828125, -0.042236328125, 0.05664...
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volume by washer and cylindical shells. December 10th 2009, 06:03 PM #1 Junior Member Joined Sep 2007 Posts 25 volume by washer and cylindical shells. problem given: y=x^3, y=8 x=0, rotate about x=2 The book uses cylindrical shells given the anser v = integral (2,0) 2pi (8-x^3)(2-x)dx ...
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Number of ways of selecting r letters? May 25th 2009, 10:21 AM #1 Number of ways of selecting r letters? If out of $3n$ letters there are $n\ As,n\ Bs\ \mbox{and}\ n\ Cs$, show that the number of ways of selecting $r$ letters out of these is the same as selecting $(3n - r)$ letters out of them. If $n < r < 2...
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the encyclopedic entry of Frege In mathematical logic Frege's propositional calculus was the first axiomatization of propositional calculus . It was invented by Gottlob Frege , who also invented predicate calculus , in 1879 as part of his second-order predicate calculus (although Charles Peirce was the ...
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L'Hospitals Rule Troubles November 12th 2008, 11:19 AM #1 Junior Member Joined May 2008 Posts 56 L'Hospitals Rule Troubles Why does the limit as t approaches infinity of [(-te-5t)/5]-[e^-5t/25]= 1/25? I keep getting infinities when I try to use l'Hospitals rule. Here is what you have posted: $\l...
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Matrix Mappings on the Domains of Invertible Matrices Journal of Function Spaces and Applications Volume 2013 (2013), Article ID 820930, 6 pages http://dx.doi.org/10.1155/2013/820930 Research Article Matrix Mappings on the Domains of Invertible Matrices Faculty of Arts and Sciences, Melikşah University, 38280 Kayser...
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Proving (u X v).(x X y) and using particular standard basis April 30th 2012, 12:06 PM #1 Proving (u X v).(x X y) and using particular standard basis On page 13 of doCarmo's book on Differential geometry of curves and surfaces he stated that: ...we prove the relation: $(u \wedge v)\cdot(x \wedge y) = \lef...
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Value as an Aftershock Precursor: A Case Study Using Earthquake Data between 2003 and 2011 in Turkey Journal of Earthquakes Volume 2014 (2014), Article ID 123092, 5 pages http://dx.doi.org/10.1155/2014/123092 Research Article Potential of Fractal Analysis of Earthquakes through Wavelet Analysis and Determination of ...
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the encyclopedic entry of Convolutional coding In telecommunication , a convolutional code is a type of error-correcting code in which (a) each m - bit information symbol (each m - bit string ) to be encoded is transformed into an n -bit symbol, where m / n is the code rate ( n ≥ m ) and (b) t...
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recurrence relation December 21st 2006, 06:31 PM #1 Newbie Joined Dec 2006 Posts 15 recurrence relation Can anyone tell me if this is correct for this relation: 6.1 In the following sequences determine s5 if s0, s1, ... sn, ... is a sequence satisfying the given recurrence relation and initial condi...
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A Novel Image Fusion Method Based on FRFT-NSCT Mathematical Problems in Engineering Volume 2013 (2013), Article ID 408232, 9 pages http://dx.doi.org/10.1155/2013/408232 Research Article A Novel Image Fusion Method Based on FRFT-NSCT College of Electronic and Information Engineering, Hebei University, Baoding 071002,...
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Design of an Extended Interacting Multiple Models Adaptive Estimator for Attitude Determination of a Stereoimagery Satellite International Journal of Aerospace Engineering Volume 2011 (2011), Article ID 890502, 19 pages http://dx.doi.org/10.1155/2011/890502 Research Article Design of an Extended Interacting Multiple ...
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Quasi-3D Modeling of Sediment Transport for Coastal Morphodynamics 1. Introduction Sand transport plays a very important role in many aspects of coastal and marine engineering. The balance of moving sands influences the construction of harbours, coastal defence, offshore wind turbine and oil rig, offshore platform and...
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Static Electric Force and Measurement Principle of Material Constants in Electrostrictive Material Smart Materials Research Volume 2012 (2012), Article ID 712103, 8 pages http://dx.doi.org/10.1155/2012/712103 Research Article Static Electric Force and Measurement Principle of Material Constants in Electrostrictive Ma...
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An Integrated Model of Material Supplier Selection and Order Allocation Using Fuzzy Extended AHP and Multiobjective Programming Mathematical Problems in Engineering Volume 2013 (2013), Article ID 363718, 14 pages http://dx.doi.org/10.1155/2013/363718 Research Article An Integrated Model of Material Supplier Selection...
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One for you, WonderBoy January 10th 2010, 08:54 AM #1 MHF Contributor Joined Dec 2007 From Ottawa, Canada Posts 3,080 Thanks 66 One for you, WonderBoy Right triangle: sides 135-352-377 Isosceles triangle: sides 132-366-366 Both have perimeter = 864 and area = 23760 Find another case ...
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find the derivative of this function September 19th 2012, 09:07 PM #1 Junior Member Joined Jul 2012 From auckland Posts 46 find the derivative of this function how do i do this find the derivative of this funtion. y= ln (ln(tanx)) derive the following properties of log x: a h...
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Runge Kutta on second order differential January 4th 2010, 10:17 PM #1 Newbie Joined Oct 2009 Posts 6 Runge Kutta on second order differential Hi, As part of my project I have been asked to code a program that peforms the runge kutta 4th order algoritm on a equation of form: $ax'' + bx' + c = 0$ ...
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Moment generating function of X*Y, normal distributions June 29th 2013, 10:25 AM #1 Newbie Joined Nov 2011 Posts 17 Moment generating function of X*Y, normal distributions Let $X$ and $Y$ be jointly normally distributed random variables with correlation $0 \le \rho \le 1$ and variance $\sigma^2 = 1$. How...
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Second order homogenous DE - Tricky November 29th 2010, 08:54 AM chr91 Second order homogenous DE - Tricky I started by trying to find the auxillary equation, as this is a homogenous second order DE. I get to this: k^2 - 2k + 1 + E^2 What can I do from here? (k-1)(k-1) + E^2 ??? November 29th 20...
4
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Neural Networks, Manifolds, and Topology Posted on April 6, 2014 topology, neural networks, deep learning, manifold hypothesis Recently, there’s been a great deal of excitement and interest in deep neural networks because they’ve achieved breakthrough results in areas such as computer vision.^1 However, there remai...
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The Determination of the Velocities after Impact for the Constrained Bar Problem Mathematical Problems in Engineering Volume 2009 (2009), Article ID 384071, 16 pages http://dx.doi.org/10.1155/2009/384071 Research Article The Determination of the Velocities after Impact for the Constrained Bar Problem ^1Center for En...
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Solving Derivatives September 21st 2013, 11:20 AM #1 Solving Derivatives Hello Everyone, In preparation for an upcoming exam I've selected a derivative problem and attempted to solve it... I have to use $f^'$$(x) = \frac{f(x+h)-f(x)}{h}$ to solve these problems. My attempts: a) $f(x) = 3x^3$ Us...
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Two much trig :) April 8th 2005, 05:15 PM #1 Two much trig :) solve 2cosX + tanX = secX where X is greater than or equal to zero and less than 2 pi. I understand that the secant is basically the inverse of the cosine, (hyp/adj), but I have no idea how to solve for this. I also don't understand how to solve an...
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Ordered Variational Inequalities and Ordered Complementarity Problems in Banach Lattices Abstract and Applied Analysis Volume 2013 (2013), Article ID 323126, 9 pages http://dx.doi.org/10.1155/2013/323126 Research Article Ordered Variational Inequalities and Ordered Complementarity Problems in Banach Lattices ^1Depar...
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Homework Help Posted by Tay on Tuesday, January 17, 2012 at 8:34pm. a particle moves along the curve y= sqrt 1+x cubed. As it reaches the point (2,3) the y-corrdinate is increasing at a rate of 4cm/s. How fast is the x-coordinate of the point changing at that instant? • math - bobpursley, Tuesday, January 17, 2012 ...
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Algebra....HELP!! Posted by Austin on Thursday, October 4, 2012 at 12:52pm. Explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c. Is there more than one way to factor this? Show your answer using both words and mathematical notation. • Algebra....HELP!! - Henry, Friday, October 5, 2012...
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geometry -Euclidean June 6th 2008, 12:31 PM skystar geometry -Euclidean Consider triangle ABC,suppose D is midpoint of AC and that the line through B perpendicular to AC intersects AC at a point X lying between D and C using Pythagoras theorem prove $|BA|^{2}+|BC|^{2}=2|BD|^{2}+2|AD|^{2}$ i drew pretty...
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Another Optimal Control Question October 11th 2010, 08:08 PM #1 Junior Member Joined Sep 2008 From Boston, Massachusetts Posts 41 Another Optimal Control Question The system $\dot{x} = x + 4u$ where $u = u(t)$ is not subject to any constraint, is to be controlled from $x(0) = 1$ to $x(t_1) = 2$ where...
5
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Gradient, divergence and curl - nabla dotted with f(r)r November 29th 2009, 11:44 AM #1 Gradient, divergence and curl - nabla dotted with f(r)r Sorry for the naff title, couldn't think of anything else. I've ended with a ridiculous answer... a) Find $abla\cdot\left(f(r)\mathbf{r}\right)$, where $r=|\mathbf{r...
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Differential equation August 9th 2008, 04:04 PM kezman Differential equation Find all the solutions y''(x) + y(x) = cos(x) + xy'(0) + y(0) I found $\frac{1}{2}$x sen(x) as 1 solution. I dont know if its the only one. August 9th 2008, 06:26 PM mr fantastic Quote: You mean you have found ...
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How to obtain isomorphic factor groups of a group from its ismomorphic subgroups? November 20th 2012, 04:07 AM #1 Member Joined Sep 2009 Posts 161 How to obtain isomorphic factor groups of a group from its ismomorphic subgroups? Dear Friends, If two normal subgroups H and K of a group G are ısomorphi...
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A Geometric Mean of Parameterized Arithmetic and Harmonic Means of Convex Functions Abstract and Applied Analysis Volume 2012 (2012), Article ID 836804, 15 pages http://dx.doi.org/10.1155/2012/836804 Research Article A Geometric Mean of Parameterized Arithmetic and Harmonic Means of Convex Functions ^1Department of ...
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Algorithms for Egyptian Fractions An Egyptian fraction representation can be formed from the binary representation of a number; e.g. 27/22 = 1.0(0111010001)*. (The star indicates that the parenthesized digits repeat in blocks of ten af...
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E(x^2) and V(x^2) March 6th 2010, 01:41 AM alexandrabel90 E(x^2) and V(x^2) Explosive devices used in mining operations produce nearly circular craters when detonated. The radii of these craters are exponentially distributed with mean 10 feet. Find the mean and variance of the areas produced by these explosi...
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the encyclopedic entry of parallelogram In geometry, a parallelogram is a quadrilateral with two sets of parallel sides. The opposite sides of a parallelogram are of equal length, and the opposite angles of a parallelogram are congruent. The three-dimensional counterpart of a parallelogram is a parallelepiped. Propert...
4
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Spatial Correlation for DoA Characterization Using Von Mises, Cosine, and Gaussian Distributions International Journal of Antennas and Propagation Volume 2011 (2011), Article ID 540275, 12 pages http://dx.doi.org/10.1155/2011/540275 Research Article Spatial Correlation for DoA Characterization Using Von Mises, Cosine...
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using integrals to find volume September 22nd 2010, 02:08 PM #1 Junior Member Joined Jun 2010 Posts 35 using integrals to find volume i have this problem where i have to find the volume of the solid obtained by rotationg the region bounded by the given curves about the specified line. the specified ...
5
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Setting up a homogenous ODE using Kirchhoff's law of voltage September 25th 2012, 11:25 AM nivek0078 Setting up a homogenous ODE using Kirchhoff's law of voltage Thank you in advance for your help. I'm having trouble with the setup of this problem. The problem states: The loop current I in a series RL circu...
5
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Geometry problems 1. November 23rd 2012, 07:48 PM #1 Geometry problems Last edited by chubakueno; November 23rd 2012 at 07:52 PM. 2. November 24th 2012, 03:59 AM #2 Re: Geometry problems Could you resubmit, including a diagram, with labels for the various points so that we can refer to li...
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fourier series question help me pls T_T May 1st 2007, 11:30 AM #1 Newbie Joined May 2007 Posts 4 fourier series question help me pls T_T Q1 )find the Fourier coefficients and Fourier series corresponding to the periodic functions g(x) = { 3 -2<x<0 .............-3 0<x<2 Q2 )Expand f(x) =...
5
[ -0.11572265625, -0.0279541015625, 0.0380859375, 0.0235595703125, 0.0224609375, 0.10400390625, 0.00555419921875, 0.0322265625, 0.0096435546875, -0.020263671875, 0.01336669921875, -0.036376953125, -0.017822265625, -0.12353515625, 0.0262451171875, -0.01531982421875, 0.003173828125, -0...
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Galois Theory Question January 15th 2010, 01:20 AM #1 Junior Member Joined Oct 2009 Posts 36 Galois Theory Question Let $f(x)=x^4+6x^2+3x-3$ and let $L$ be a splitting field of $f$ over $\mathbb{Q}$. I can show that 73 has a cube root in $L$. Now I'm asked to "deduce" that the Galois group $G$ of $f...
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[ 0.0458984375, -0.0224609375, 0.05712890625, 0.003936767578125, 0.050537109375, 0.09228515625, -0.03515625, -0.00384521484375, -0.003662109375, -0.047607421875, 0.05078125, -0.0263671875, -0.01318359375, -0.04345703125, -0.049560546875, -0.006622314453125, -0.06982421875, 0.00154113...
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