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A New Series of Three-Dimensional Chaotic Systems with Cross-Product Nonlinearities and Their Switching Journal of Applied Mathematics Volume 2013 (2013), Article ID 590421, 14 pages http://dx.doi.org/10.1155/2013/590421 Research Article A New Series of Three-Dimensional Chaotic Systems with Cross-Product Nonlinearit...
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Solving a system graphically and numerically December 1st 2008, 10:45 AM LoveBeachForever Solving a system graphically and numerically Okay so I'm having trouble with a system involving a circle and a parabola. My book tells me to solve the system graphically and support my answer numerically. I don't know how t...
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Finding a power series March 5th 2010, 10:40 PM #1 Question: Expand $\frac{1}{(1+x)^\frac{1}{4}}$ as a power series and use it to estimate $\frac{1}{1.1^\frac{1}{4}}$ correct to three decimal places. I am clueless! Binomial series for non-integer exponents: $(1+x)^{\frac{1}{4}}= ..$ Then plug i...
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the encyclopedic entry of Defect (geometry) In geometry , the defect (or deficit) of a vertex of a polyhedron is the amount by which the sum of the angles of the faces at the vertex falls short of a full circle. If the sum of the angles exceeds a full circle, as occurs in some vertices of most (not all) non-conve...
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Find the tangent. March 28th 2006, 11:22 PM classicstrings Find the tangent. How would i find the tangent to the quadratic 2x^2 -12x + 14 at the point (1,4)? Do we take the derivative of the equation? Thanks March 29th 2006, 02:05 AM Aradesh yes, that's right, you need to differentiate it. let $f(...
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Homework Help Posted by Tommy on Saturday, July 19, 2008 at 1:03am. Prove the identity sin(x+y+z)+sin(x+y-z)+sin(x-y+z)+ sin(x-y-z) = 4 sin(x)cos(y)cos(z) This identity is so long and after i tried to expand the left side and it just looked something crap Thanks for you help :) • Trigonometry - Reiny, Saturday, ...
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Math Help November 8th 2009, 01:01 PM #1 Member Joined Dec 2008 Posts 152 Parallelogram A Parallelogram $ABCD$ is given. You draw a line which is parallel to $AB$ and crosses the sides [tex]AD[math and $BC$ in $S$ and $Q$. Another line which is parallel to $BC$ crosses the sides $AB$ and $DC$ in $P$...
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Formulas for N-Dimensional Spheres Date: 10/26/2000 at 00:49:38 From: Shalanna Collins Weeks Subject: Geometry in 4 dimensions (4D circle?) Hi! I have a puzzle book that I have used in my math classes (I tutor math for gifted and talented 7th-8th grade kids) for the students who have finished their work. There is a ...
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Limit question November 3rd 2006, 08:21 PM killasnake Limit question Sorry, I have no idea how to solve this limit problem I got this answer but it's wrong cos(0)-sec(0)^2)/2 November 3rd 2006, 11:01 PM Soltras Well if you use something like Mathematica (software) it should give you 1/24 as the ...
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Consecutive letters February 9th 2010, 02:43 AM nahduma Consecutive letters There is a sequence of ten letters, consisting of two letters A and T, with equal probabilities for both. What is the probability that there will be atleast two As consecutively? February 9th 2010, 04:07 AM awkward Quote: ...
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Homework Help Posted by Megan on Saturday, December 4, 2010 at 12:20am. The shorter leg of a right triangle is 14 feet shorter than the longer leg. The hypotenuse is 26 feet. How long is each leg? • Math - hy, Saturday, December 4, 2010 at 1:31am (X-14)^2+X^2 = 26^2 solve for x and x-14 • Math - Bosnian...
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[SOLVED] The Squeeze Theorem How do you solve this? $\lim_{x\to\frac{\pi}{3}} (\sqrt{3} \sin x -2x)$ Direct Substitution... That's all. There's no need for any advanced techniques here. I'll do it... Here's a step by step of all the relevant theorems of limits that apply. 1. The limit of a sum is the sum of the limits...
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Quotient Rule Help February 27th 2008, 05:58 PM #1 Newbie Joined Feb 2008 Posts 4 Quotient Rule Help Hey. I was not able to make the class where the explained the quotient rule in calculus. I'm trying to self learn it but the book isn't helping that much. They're trying to find the derivat...
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Use vectors to prove ... December 31st 2006, 07:54 AM #1 Member Joined Nov 2006 Posts 123 question 1 Use vectors to prove that the line segment joining the midpoint of two sides of a triangle is parallel to the third side and half as long. Question 2 Use vectors to prove that the midpoints of...
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Differential equation in implicit form January 25th 2009, 09:56 AM bobred Differential equation in implicit form I was wondering if someone could give me some idea as where to start with the following question? Find in implicit form the general solution of the differential equation $dy/dx\ = -3 y^3 (1 ...
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Logarithmic problem November 11th 2012, 11:10 AM #1 Newbie Joined Oct 2012 From UK Posts 16 Logarithmic problem Hi, Can someone please tell me how to solve the attached logarithmic problem ? the answer should be 5. Attached is also my working. Thanks Re: Logarithmic problem log(x^...
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help with some problems? We need to find the limits, $\lim_{x\to 0} x\sin \frac{1}{x}$ We can write, $-1\leq \sin \frac{1}{x} \leq 1$ Multiply by "x" (positive or negative equality is preseved), $-x\leq x\sin \frac{1}{x} \ leq x$. This inequality is true at some open interval containing zero except possibly at zero its...
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Lat/Lon to Distance Converting Latitude and Longitude into Distance Solving for Great Circle distance Calculating distance when using flat map data using a rectangular grid coordinates system is a simple matter of using Pythagoras to solve for the distance: 'Compute the components and the distance... myDelt...
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e Experiment 2 Vector Addition Objectives: The objective is to (1) practice the polygon method of vector addition, and (2) compare the graphical results with calculation (analytical solution) to get an idea of how accurate t...
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GEOPROJ - Step 6 Calculate the 95% confidence limits on the incidence rate ratio. 3. Confidence intervals for IRst=0 When the observed rate is zero (i.e. there were zero cases), the gamma method is unable to produce confidence limits for the direct standardized rates. In this situation, we adopt the following conventi...
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Implicit differentiation November 7th 2006, 10:04 AM #1 Junior Member Joined Nov 2006 Posts 32 Need help to finish this question,also how do I post in TeXnicCenter? Find dy/dx and d^2y/dx^2 for x^2y - sin(x^2 - y) = 20 2x. dy/dx - cos(x^2 - y) (2x - dy/dx) = 0 2x. dy/dx = cos(x^2 - y) (2x -...
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determinant and eigenvalues October 3rd 2006, 06:17 AM action259 determinant and eigenvalues For an nxn matrix A det(A) = ∏(i=1, .., n) λi ...... [1], where the λi are the eigen values (appearing with the correct multiplicities) the characteristic equation is det(λI-A)=0, and this is an nth polyno...
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Definition of Square root and Exponents. - My Math Forum Well, if you can't understand it, try to prove it! So if you have lets say you have an equation: $a^p=a^q$ It should be obvious that $p=q$ (because the base is the same [it's a property of logarithms]). Now, a long time ago, some mathematician decided that t...
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on what point these function are differentiable.. January 20th 2009, 11:06 AM #1 MHF Contributor on what point these function are differentiable.. A) What exactly is the first one? I believe it is $\lfloor x\rfloor \sin^2(\pi x)$ with $\lfloor x\rfloor$ being the floor function. B) $f:x\longmapsto\left\{\b...
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Model Theory - definiable classes November 17th 2010, 04:12 AM Arczi1984 Model Theory - definiable classes Hi, This time I've problem with following exercise: Let $L$ be a first-order language and for each $i \in I$ let $\mathbb{K}_i$ be a class of $L$-structures. Show that $\mbox{Th} (\bigcup_{i \...
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Quotient Rings and Homomorphisms March 8th 2010, 07:49 PM #1 Newbie Joined Mar 2010 Posts 3 Quotient Rings and Homomorphisms Let R and S be rings. Show that pi: RxS--> R given by pi(r,s)=r is a surjective homomorphism whose kernel is isomorphic to S. Clearly since $0_R\in R,0_S\in S$ we know that $R...
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Calculus Word Problem October 24th 2009, 08:14 AM #1 Junior Member Joined Oct 2009 Posts 32 Calculus Word Problem Water is leaking out of an inverted conical tank at a rate of 7000 cm3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 m and the diamet...
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combinations of permutations? November 9th 2009, 03:52 AM billym combinations of permutations? I have a string of length 14 made up of 0s, 1s, and 2s. I'm trying to find the number of strings with an odd number of 2s. So I want to sum the number of strings I can make for each odd value $k$ between 1 and 14....
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Straight Line Charge of Finite Length September 21st 2011, 04:31 PM #1 Member Joined Jan 2010 Posts 144 1. The problem statement, all variables and given/known data Find the expression for the E field at an arbitrary point in space due to a straight line of length l uniformly charged with total charg...
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Math: Calculus Posted by Anonymous on Tuesday, September 22, 2009 at 8:45pm. The max. weight M that can be supported by a beam is jointly proportional to its width w and the square of its height h, and inversely proportional to its length L. a) write an equation that expresses the proportionality. b) determine the c...
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M-QAM Bit Error Rate in AWGN Quadrature Amplitude Modulation has been adopted by most wireless communication standards such as WiMAX and LTE. It provides higher bit rates and consequently higher spectral efficiencies. It is usually used in conjunction with Orthogonal Frequency Division Multiplexing (OFDM) which provid...
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For every ε>0 there is an a∈A such that a<z+ε January 27th 2011, 07:46 PM #1 Member Joined Apr 2010 Posts 133 For every ε>0 there is an a∈A such that a<z+ε So there are a few questions that go along with this but I've hopefully worked them out correctly so I am only posting the ones I definitely have no ...
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Calculating the number of possible outcomes October 12th 2010, 01:25 AM #1 Newbie Joined Oct 2010 Posts 3 Calculating the number of possible outcomes Hi everyone, Now, when it comes to all things maths, I am totally hopeless. I have lots of trouble solving basic problems, so I knew I'd have to turn ...
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Finding exact solutions April 12th 2010, 08:27 PM #1 Member Joined Mar 2010 Posts 133 For a) this is my work: cos 2θ + cos θ = 0 2 cos^2θ - 1 + cos θ = 0 2cos^2θ + 1 cos θ = 1 1) cos θ = 1 2) 2cos θ + 1 = 1 cos θ = 0 I got those two equations above from factoring out the...
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For what x value does the tangent of the graph of f(x) = xe^2x have a slope = 0? I said f'(x) = m = 0 = 2xe^2x ---> x = 0/(2xe^2x) = 0 Is this right? Wouldn't that equal 2? to solve $f'(x)=0$ $f'(x)=2e^{2x}x+e^{2x}=e^{2x}(2x+1)=0\Leftrightarro w 2x+1=0$ :) Ok then that would equal...
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Cardinal Numbers Finite Cardinal A cardinal is finite iff it is a natural number. Infinite Cardinal A cardinal that is not a finite cardinal is an infinite cardinal. Dedekind-Finite Cardinal The cardinal of a Dedekind-finite set (a set that does not include a countably infinite subset) is a Dedekind-fi...
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Modified Newton's Law of Gravitation due to Minimal Length in Quantum Gravity Advances in High Energy Physics Volume 2013 (2013), Article ID 126528, 7 pages http://dx.doi.org/10.1155/2013/126528 Research Article Modified Newton's Law of Gravitation due to Minimal Length in Quantum Gravity ^1Department of Physics, Fa...
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Solve double integral in Polar or Cylindrical Coordinates April 8th 2012, 06:11 PM #1 Newbie Joined Apr 2012 From United States Posts 3 Solve double integral in Polar or Cylindrical Coordinates a. ∫∫d (x+y)dA wehre D is bound by the X axis, y- axis, and circles x^2+y^2=4 and x^2+y^2=16 and is in the ...
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n consecutive integers October 8th 2007, 07:32 PM ctvsurgn n consecutive integers Gene has 2n pieces of paper numbered 1 through 2n. He removes n pieces of paper that are numbered consecutively. The sum of the numbers on the remaining pieces of paper is 1615. Find all possible values of n. October 18th ...
5
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A Generalized Problem Problem May 1st 2011, 09:30 AM #1 Newbie Joined May 2011 Posts 15 A Generalized Problem Problem Hey all, So in the shower, I found myself trying to generalize a problem. I was discussing with my students earlier how the two numbers, x and y, that both add and multiply to 4 ...
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Find an equation for the line... May 12th 2009, 09:27 AM #1 Newbie Joined Mar 2009 Posts 21 I am having trouble studying for my Algebra final. I am having problems giving equations for lines. The two problems that I am currently stuck on are-- (1) Give an equation for the horizontal through the point...
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Two Problems In Group Theory February 25th 2008, 10:10 AM #1 Newbie Joined Feb 2008 Posts 17 Two Problems In Group Theory Hello there Wow, this forum is amazing! I didn't realize places like this exist and I'm really looking forward to getting stuck in to helping people. Anyway, my first post is unf...
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Differential Equations? October 21st 2012, 10:34 PM #1 Newbie Joined Oct 2012 From United States Posts 9 Differential Equations? Hi, I was wondering if anyone could help me with this problem. The differential equation y'=4y/x has a power function solution y=Ax^n if y(3)=162, determine the values of n...
5
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Do cohomologically trivial line bundles affect morphisms? up vote 2 down vote favorite 1 Assume we have a locally free sheaf $R$ of associative $O_S$-algebras of rank $r^2$, possibly noncommutative, where $S=\mathbb{P}^2$ over $\mathbb{C}$. Furthermore given a locally free $O_S$-module $E$ also of rank $r^2$, which is...
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Tossing game January 8th 2010, 06:05 AM #1 Junior Member Joined Nov 2009 Posts 57 Tossing game A man tossing a coin wins one point for heads and five points for tails. The game stops when the man accumulates at least 1000 points. How do you estimate with accuracy $\pm 2$ the expectation of the length...
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Math Help August 27th 2011, 11:09 AM #1 Member Joined Jul 2011 Posts 196 Statement neg I was just wanting to make sure I had treated everything correctly when negating this statement. I wasn't 100% on how to treat the bracket between the existential quantifiers and whether or not I should change the...
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Help in setting the polar integral February 13th 2009, 06:51 AM #1 Member Joined Dec 2008 Posts 228 Help in setting the polar integral Q: Find the area inside the region bounded by both r = sin theta and r = sin (2 theta) I set the integral to......... 2[1/2{(sin 2x)^2 dx - 1/2{(sin2x)^2 - (sin...
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Remarks on Null Geodesics of Born-Infeld Black Holes ISRN Mathematical Physics VolumeΒ 2012Β (2012), Article IDΒ 869069, 13 pages http://dx.doi.org/10.5402/2012/869069 Research Article Remarks on Null Geodesics of Born-Infeld Black Holes Department of Physics and Geology, Northern Kentucky University, Highland Heigh...
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Math Help February 18th 2010, 06:54 AM #1 Member Joined Oct 2009 Posts 195 Thanks 1 Polynomial |-1 0 0 0| |0 -1 3 0| |0 0 2 0| |-3 3 -3 2| Given this matrix A, and the polynom f(x) = x^2 + x + 2, what is the matrix M = f(A) ? Thanks alot! $\left[\begin{array}{cccc}-1&0&0&0\...
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i need help for asvab January 21st 2009, 07:40 PM #1 Newbie Joined Jan 2009 Posts 2 i am 34 and getting ready for the asvab and i do not know how to answer some of the questions. they all look like there should be a formula for them but i cant figure this out it may be basic but i need help...not the ...
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Brazilian Journal of Physics Servicios Personalizados Articulo Indicadores Links relacionados Compartir versión impresa ISSN 0103-9733 Braz. J. Phys. vol.39 no.2a São Paulo ago. 2009 http://dx.doi.org/10.1590/S0103-97332009000400030  Nonlocal effects on the thermal behavior of non-crystalline solids E. K. Lenz...
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work - calculus October 31st 2007, 11:59 PM kittycat work - calculus given the force vector field F = <y,a> . Find the work in moving an object through the vector field along the closed curve C formed by the arc of the ellipse x=acost , y=bsint, lying in the first quadrant, the x-axis, and the y-axis. P...
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Optimization Problem July 21st 2010, 05:25 PM #1 Newbie Joined Jun 2010 Posts 21 If 1700 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. Volume = cubic centimeters 1700 = x^2+4*x*h 4xh=1700-x^2 h=17...
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\int_0^{\infty}\frac{\sin x}{x}\ dx August 17th 2011, 08:33 AM Also sprach Zarathustra \int_0^{\infty}\frac{\sin x}{x}\ dx Okay, I'm trying to compute the following integral: $I=\int_0^{\infty}\frac{\sin x}{x}\ dx$ But first, I will try to prove that $I$ converge. $I=\int_0^{\infty}\frac{\sin x}{x...
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Help with a direct sum proof February 4th 2009, 09:32 PM very_unique Help with a direct sum proof The problem reads: "Let W1 denote the set of all polynomials f(x) in P(F) such that in the representation f(x) = (a_n)(x^n) + (a_(n-1))(x^(n-1)) +...+ (a_1)(x) + a_0, we have a_i = 0 whenever i is even. Likewis...
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quadratic functions May 2nd 2010, 09:28 PM mamajen quadratic functions ok this is my lasst question of the night i promise! Find the unique quadratic function that passes through the points (-2, 5), (1,-1), and (6, 29). use matrices to solve May 2nd 2010, 09:31 PM pickslides Quote: You need to ...
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Brazilian Journal of Chemical Engineering Services on Demand Article Indicators Related links Share Print version ISSN 0104-6632 Braz. J. Chem. Eng. vol.24 no.3 São Paulo July/Sept. 2007 http://dx.doi.org/10.1590/S0104-66322007000300006  ...
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Simplifying an equation using trig identities October 28th 2010, 04:33 PM #1 Junior Member Joined Oct 2009 Posts 57 Simplifying an equation using trig identities Hi, I need to simplify this equation: $\sqrt{(-2\sin{2t})^2 + (2\cos{2t})^2}$ I know that this equals 2 (by plugging into a calc...
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Nilpotent Matrix March 26th 2008, 08:48 PM #1 Newbie Joined Nov 2007 Posts 5 Nilpotent Matrix Hey everyone i have no clue how to solve this one, please help. If B is any nilpotent matrix prove that I-B is invertible and find a formula for (I-B)^-1 in terms of powers of B? use the geometric seri...
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For what range of values of 'x' ? Author Message TAGS: For what range of values of 'x' ? [#permalink] 03 Sep 2010, 06:02 1 ...
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Excel Formulas: Defining and Creating a Formula In this lesson, we introduce you to basic rules for creating formulas and using functions. We feel one of the best ways to learn is through practice, so we provide several examples and explain them in detail. The topics we will cover include: • rows and columns • exa...
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Polynomials in one variable Next: Polynomials in more than Up: Polynomials and polynomial functions Previous: Polynomials and polynomial functions A polynomial P in one variable x is formally defined as a follows P(x) = p[0] + p[1]x ...
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Sizing and applying ROLLER SCREWS How it works Roller screws convert rotary motion into linear motion just like acme and ballscrews. Comparably sized roller screws, however, have better efficiency than acme screws and can carry larger loads than ballscrews. In addition, they can cycle more often and turn significantly...
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d(x^e^x)/dy'',?? October 30th 2008, 11:34 AM #1 Junior Member Joined Oct 2008 Posts 74 d(x^e^x)/dy'',?? Ive never been shown the technique for this differential. Anybody know it?? thnx! diff: $y=x^e^x$ hmm latex won't let me write this one, basicall y=x to the power exp(x) If you are asking what $\f...
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Force Problem March 18th 2010, 06:41 PM #1 Member Joined Feb 2010 Posts 76 Force Problem Two electrons repel each other with a force that varies inversely as the square of the distance between them. If one electron is fixed at the point (2, 4), find the work done in moving a second electron from ...
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Homework Help Posted by Wellness on Friday, October 30, 2009 at 10:38am. Prove that A.(BxC) = (AxB).C • Vec & Geo - bobpursley, Friday, October 30, 2009 at 12:13pm A × B = (Ax î + Ay ĵ + Az ˆk) × (Bx î + By ĵ + Bz ˆk) A × B = Ax î × Bx î + Ax î × By ĵ + Ax î × Bz ˆk + Ay ĵ × Bx î + Ay ĵ × By ĵ + Ay ĵ ...
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Mercator projection and scale. October 21st 2008, 06:55 AM #1 Newbie Joined Mar 2008 Posts 8 Mercator projection and scale. I need to draw maps on a computer screen. From Wikipedia, I found that for a given latitude, the "y" value for a Mercator projection is given by... y = ln(tan(Latitude) + ...
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Need more help understanding logarithm prob. log 4 – log 400,000 = and thank you soroban log(4) - log(400,000) =log(4) - log(4*100,000) =log(4) - (log(4) + log(100,000)) =log(4) - log(4) - log(100,000) = -log(100,000) = -5 Hello again, eebjr! Yet another approach . . . Simplify: . $\log(4) - \log(400,\!000)$ $\log(4)...
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Archimedes parabola/ Triangles June 15th 2009, 06:35 AM abccbaabc014 Archimedes parabola/ Triangles The Quadrature of the Parabola - Wikipedia, the free encyclopedia I can follow the geometric proof on this page, fine, but I can't figure out why the second triangles height is 1/4th of the first. Can anyone ...
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Actuarial Loan Settlement equation December 18th 2011, 01:10 AM #1 Newbie Joined Dec 2011 Posts 3 Actuarial Loan Settlement equation I’m looking for some assistance in deciphering the settlement formula detailed in the link below so I can put this into practical use in a spread sheet. What I am looking t...
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clarification on differential equation workings October 24th 2009, 01:57 PM ben.mahoney@tesco.net clarification on differential equation workings the question is: Q) Find the general solution of the differential equation dx/dt - x = t+1 A) Here are my workings. Does this look correct? dx/dt = x + t ...
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Inequality April 12th 2010, 12:56 PM #1 Newbie Joined Dec 2009 Posts 13 Inequality Hello. I am really stuck with this problem. Please help. x and y are positive numbers. Which of the following implies $x^y \ge y^x$ A: $x \leq e \leq y$ B: $y \leq e \leq x$ C: $x \leq y \leq e \text { or...
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dP/dt =, how do you find the solution? April 14th 2010, 11:23 AM #1 Member Joined Apr 2008 Posts 123 dP/dt =, how do you find the solution? dP/dt = te^(t+P) ; where P = 1 when t = 0. I got to the part where: dP/(e^P) = te^t dt Found the integral: -e^(-P) = te^t - e^t + c Not sure...
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Quiz question that stumped me September 12th 2008, 10:47 AM #1 Newbie Joined Aug 2008 Posts 13 Quiz question that stumped me We had a quiz today and there was a problem where I didn't even know where to start... I was hoping someone could help me out on it. I'm not very good with the syntax to this ...
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Volumes of n-dimensional balls Posted by: Dave Richeson | May 9, 2010 Volumes of n-dimensional balls We all know that the area of a circle is ${\pi r^{2}}$ and the volume of a sphere is ${\displaystyle \frac{4}{3}\pi r^{3}}$, but what about the volumes (or hypervolumes) of balls of higher dimension? For a fun exerci...
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Homework Help Posted by kelly on Saturday, July 30, 2011 at 9:17pm. can somebody help me out? am I doing this right? using the elimination method. y = 3x + 2 2y-6x=4 We have the solution for y so we use this to solve 2 (3x + 2) – 6x = 4 6x + 4 – 6x = 4 0x +4 = 4 Subtract 4 from both sides X=0 Now we use 0 for...
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Two difficult solve for x qns. January 6th 2010, 05:01 PM -Equilibrium- Two difficult solve for x qns. Working on this set of questions, and Ive come to two difficult qns, which Im not sure which route I should take at tackling them, its come to a point where Ive written and erased it so many times.. my page...
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A New Fixed Point Theorem and Applications Abstract and Applied Analysis Volume 2013 (2013), Article ID 432402, 5 pages http://dx.doi.org/10.1155/2013/432402 Research Article A New Fixed Point Theorem and Applications ^1Department of Economic Mathematics, South Western University of Finance and Economics, Chengdu, S...
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Iterative Solution to a System of Matrix Equations Abstract and Applied Analysis Volume 2013 (2013), Article ID 124979, 7 pages http://dx.doi.org/10.1155/2013/124979 Research Article Iterative Solution to a System of Matrix Equations ^1Department of Mathematics, Shanghai University, Shanghai 200444, China ^2School o...
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linear map - matrix description July 6th 2010, 11:29 PM #1 Member Joined Mar 2010 Posts 175 linear map - matrix description $A$ = $\left(\begin{array}{ccc}1&{-a}&{a}\\{-1}&a&{a+2}\\1&{2a+3}&{-3a-4}\end{array}\right)$ $a \in R$ $A$ describes the linear map $T: R^3 \rightarrow R^3$ for the basis ...
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Differential Equation + Taylor Polynomial + Euler's Method May 31st 2008, 07:40 AM bakanagaijin Differential Equation + Taylor Polynomial + Euler's Method Consider the differential equation $\frac{dy}{dx} = 5x^2 - \frac{6}{y-2}$ for $y eq 2$. Let $y=f(x)$ be the particular solution to this differential equation ...
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Normal, self-adjoint, or neither linear operator April 11th 2008, 08:35 AM #1 Super Member Joined Mar 2006 Posts 705 Thanks 2 Normal, self-adjoint, or neither linear operator In $P_{2}( \mathbb {R} )$, let T be defined by T(f) = f', where $<f,g> = \int _{0}^{1} f(t)g(t)dt$ Is T normal, self-adjo...
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Adding an affine term to linear SVM / logistic regression objective function Hello. I am working currently on a problem where I have to solve either an L2-regularized logistic regression or L2-reg linear SVM problem, where I have an added affine term. So my problem for example is: min_ w {C*sum_i log(1+exp(w * x_i *...
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please help me :-(....distance problem December 4th 2007, 08:45 PM #1 Newbie Joined Dec 2007 Posts 5 please help me :-(....distance problem It takes a private airplane 8.75 hours to make the 2100-mile flight from atlanta to los angeles and 5 hours to make the return trip. Assuming that the wind blows...
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Curvilinear Regression Objectives How does polynomial regression test for quadratic and cubic trends? What are orthogonal polynomials? ...
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A fantastic interactive tutorial of the sequent calculus • /r/programming all 26 comments [–]DGolden7 points8 points9 points sorry, this has been archived and can no longer be voted on [–]vagif3 points4 points5 points sorry, this has been archived and can no longer be voted on [–]-3 points-2 points-1 points sorry...
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VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems Advances in High Energy Physics Volume 2013 (2013), Article ID 732682, 6 pages http://dx.doi.org/10.1155/2013/732682 Research Article VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microre...
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Math Help June 7th 2010, 05:34 AM #1 Newbie Joined Dec 2009 Posts 21 Complex (a) Show that (3 – i)^2 = 8 – 6i. (b) The quadratic equation az^2 + bz + 10i = 0, where a and b are real, has a root 3 – i. (i) Show that a = 3 and find the value of b. (ii) Determine the other root of the ...
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Help (story problems) March 6th 2007, 03:22 AM #1 Help (story problems) 1. The length of a rectangular playing field is 5 ft less than twice its width. If the perimeter of the playing field is 230 ft, find the length and width of the field. 2. A bus leaves a station at 1 P.M., traveling west at an averag...
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Cauchy-Euler DE January 19th 2010, 03:11 PM Aryth Cauchy-Euler DE A second order homogeneous Cauchy-Euler Equation is an equation of the type: $ax^2y''(x) + bxy'(x) + cy(x) = 0$, a,b,c constants, $x > 0$ Explain why, in the case of the homogeneous C-E DE, a solution can be of the form $y = x^m$ It...
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How to construct triangle April 22nd 2010, 12:26 PM metlx How to construct triangle $c - a = 2cm$ $b = 5 cm$ $\gamma = 30^0$ I know how to solve if you have a-b = x.. you construct a isosceles triangle and then continue from there.. but when you have a hypotenuse it's different.. can someone he...
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proof of the identity for a coin having even number of heads November 24th 2009, 07:25 AM #1 Newbie Joined Nov 2009 From NY, NY Posts 5 proof of the identity for a coin having even number of heads Suppose that n independent tosses of a coin having probability p of coming up heads are made. Show that ...
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Math Help If you intend... $\sum_{n}n\cdot z^{z} = z^{z} \cdot \sum_{n} n$ ... it diverges $\forall z$ ... If you intend however ... $\sum_{n} z^{n\cdot z}$ ... that's a nice problem Kind regards $\chi$$\ sigma$ If we write the series as ... $\varphi(z)= \sum_{n=0}^{\infty} (z^{z})^{n}$ (1) ... it is evident that (1)...
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Another definite integral problem The question: $\int_{0}^{\pi} \frac{sinx}{5 + 2cosx} dx$ My attempt: Let u = 5 + 2cosx $\frac{du}{dx} = -2sinx$ du = -2sinx dx $-\frac{1}{2} \int_{0}^{\pi} \frac{1}{u} du$ $x = 0 \rightarrow u = 7$ $x = \pi \rightarrow u = 3$ $-\frac{1}{2...
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Sizing Pneumatics for Performance and Efficiency Authored by: Curtis Harvey Lead Mechanical Engineer Foth Production Solutions LLC Lake Elmo, Minn. Edited by Kenneth J. Korane ken.korane@penton.com Key points: • Traditional techniques size pneumatic circuits based on valve flow. • To improve performance and energy ef...
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Mathematical Modeling and Analysis of Nonlinear Enzyme Catalyzed Reaction Processes Journal of Theoretical Chemistry Volume 2013 (2013), Article ID 931091, 7 pages http://dx.doi.org/10.1155/2013/931091 Research Article Mathematical Modeling and Analysis of Nonlinear Enzyme Catalyzed Reaction Processes Department of ...
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Double Ferris wheel problem November 24th 2009, 10:38 AM #1 Newbie Joined Nov 2009 Posts 7 Double Ferris wheel problem I got this project that I am doing for pre-Calculus and I got question #1 and question 2 but could someone point me in the right directions so i can solve the other problems. Mod...
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help bivariate March 22nd 2008, 03:42 AM #1 Member Joined Dec 2007 Posts 90 help bivariate Five observations of bivariate data produce the following results, denoted as (xi, yi)for i =1, 2, 3, 4, 5. (13, 2.7) (13, 4.0) (18, 2.8) (23, 3.3) (23, 2.2) [Σ x = 90, Σ y = 15.0, Σ x2 = 1720, Σ y2 = 46....
4
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Qhull Up: Home page for Qhull (http://www.qhull.org) Up: Qhull manual: Table of Contents To: Programs Options Output Formats Geomview Print Qhull Precision Trace To: FAQ: Table of Contents (please wait while loading) Frequently Asked Questions about Qhull If your question does not appear here, see: ...
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[ -0.0233154296875, 0.032958984375, -0.0791015625, -0.00933837890625, -0.10546875, -0.09326171875, -0.08203125, 0.00445556640625, 0.004425048828125, -0.03466796875, -0.020263671875, -0.0810546875, 0.03662109375, 0.0556640625, -0.00225830078125, 0.0220947265625, 0.00054168701171875, -...
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Population October 17th 2009, 10:33 AM jarny Population Hello, I am having trouble solving this problem exactly. I used a 20 population difference both ways at t=1 and t= -1 to approximate the answer but it is still not right. The answer is 484 rabbits after 12 months. The time rate of change of a rabb...
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[ 0.04541015625, 0.03369140625, 0.06884765625, 0.0296630859375, -0.06005859375, -0.0306396484375, -0.03125, 0.041259765625, 0.029052734375, 0.1240234375, 0.140625, 0.00341796875, 0.01806640625, 0.06640625, 0.0283203125, 0.0184326171875, -0.0279541015625, -0.052978515625, -0.0018539...
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