# Calculus

- Elementary functions. Calculating limits, derivatives and integrals. Optimization problems
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 Meta Thread / Thread Starter Last Post Replies Views Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions... Feb23-13 09:24 AM micromass 1 40,144 consider the following image http://i.imgur.com/4IrsvlR.png (the red is the surface area element and the green... Feb12-14 08:07 AM HallsofIvy 1 405 Hi, I would like to confirm my intuition about a bessel integral from you guys. The integral is: Integrate ]... Feb12-14 04:56 AM JJacquelin 3 300 Hello, I have been working on my master thesis topic and have been struggling to find a solution to a particular... Feb12-14 02:33 AM Fjolvar 10 656 Hello everyone! I'm studying out of Spivak's calculus on my own and ran into a problem I can't explain on Theorem 1 of... Feb11-14 08:15 PM CRichard 4 461 Prays the CFT that all function f(x) can be expressed how the integral of its derivative more an initial... Feb11-14 03:30 PM mathman 4 336 Hi everyone, What does \int \vec{f} × \vec{dl} mean? does it mean "The Line Integral of Vector Function on a... Feb11-14 07:23 AM Simon Bridge 7 454 Hi All, I met the following function to evaluate, v(x)=\int_{-\infty}^{-a} G(t) ln(\vert t - x \vert)... Feb10-14 12:20 PM muzialis 2 315 Hi, if oyu look at question 16b in the link below in order to get the second derivative wrt to t they take the square... Feb10-14 09:07 AM Sunfire 2 341 http://www.physics.udel.edu/~watson/phys208/exercises/kevan/efield1.html I'm having trouble understanding the... Feb9-14 04:13 PM tiny-tim 1 325 Please delete. I neglected to read the forum guidelines regarding my type of post. Apologies. Feb9-14 06:28 AM Snoozems 0 300 Level function = (1/r^2) (x^2 + y^2 + z^2) = 1 Vector , , )] = parametric equation to sphere Level function ... Feb8-14 08:12 AM clairaut 16 560 Hi guys, I've been using this site for a while now, but this is going to be my first post. I want to pick your... Feb8-14 05:52 AM tx213 2 336 Okay I will try to make this as straightforward and clear as possible. My calculus background is rusty because it's... Feb7-14 05:13 PM Chestermiller 5 433 I have a probability distribution as follows:... Feb7-14 07:28 AM imtitanium 6 788 This is not homework it's just an equation I pulled out of the air and have been trying to solve Derivative of... Feb7-14 03:38 AM stevmg 9 802 O.K. , this question is inspired by a physics class I'm taking where we're working out the expectation values of wave... Feb6-14 10:57 PM Shyan 1 293 I know what a complex number is. Learned it way back when I took college classes. I know it is a number that has a... Feb6-14 10:56 PM Pythagorean 1 318 Can anybody please help me understand the computation of the integral in the attached image. I shall be grateful. Feb6-14 09:33 AM HallsofIvy 3 391 I can't seem to quite comprehend the level curves for f(x,y)=xy. I realize this should be very simple yet the answer... Feb5-14 11:49 PM Shyan 1 350 What's the difference between these three? I only know Taylor series and its variants which I suppose is called power... Feb5-14 06:18 AM Avichal 2 318 hey pf! can someone please explain physically what the dyadic product represents: \vec{a} \vec{b} i know its a... Feb5-14 12:36 AM joshmccraney 3 339 Here is the beast \iint_{(ax+\mu _{1})^{2}+(bx+cy+\mu _{2})^{2}\leqslant z}\frac{1}{2\pi \sigma... Feb4-14 12:06 PM Jeff.Nevington 2 1,085 Has anybody got an idea how to solve this integral. I tried integration by parts, and that made the things even more... Feb2-14 05:23 AM D H 1 404 hey pf! can someone comment on this statement i believe to be true: a simply connected, curl-free vector field is... Feb1-14 01:57 PM FactChecker 10 611 I've been taking calculus for a while now and I was just wondering why natural logarithm is abbreviated as "ln" and... Jan31-14 12:18 PM Jhenrique 8 667 If x^n=y^n , n= odd Then x=y I know that an odd is n=2k+1 So x^(2k+1)=y^(2k+1) I don't know how to finish... Jan30-14 04:41 PM Mark44 1 374 I want to show that a function x(a,b) is bounded by some value l, knowing that the extremes of the function occur when... Jan30-14 10:00 AM jgens 10 501 Hey, everyone. I am trying to find the power series of secant from the known power series of cosin, but my answer... Jan28-14 09:44 PM HallsofIvy 1 348 Hey, I am rather stuck on this gaussian integral.... I have come this far, and not sure what to do now: \int... Jan28-14 03:17 PM mathman 1 369 I'm teaching a course using D. V. Schroeder, An Introduction to Thermal Physics, and there is a "derivation" in the... Jan27-14 09:01 PM FactChecker 5 552 I have thomas calculus 12th edition, I like it, I study and understand calculus, but i need somebody to recommend... Jan27-14 08:31 PM FactChecker 6 550 hey pf! i'm trying to get a geometric understanding of the fundamental theorem: \int_a{}^{b}f'(x)dx=f(b)-f(a)... Jan27-14 08:12 PM FactChecker 4 413 Hi guys, I'm a bit rusty on optimization, but i remember enough to be able to setup some problems that I am facing in... Jan27-14 07:51 PM FactChecker 5 403 Hello all, Suppose I have a simple 1-D signal and I want to compute the hessian. In that case, it should generalise... Jan27-14 11:08 AM Stephen Tashi 1 335 I have been reviewing some details on the Dirac Delta function and I've hit a little bit of a road block with trying... Jan26-14 10:57 AM WannabeNewton 3 433 A limit of a sequence is definetely convergent if: If for any value of K there is an N sufficiently large that an >... Jan26-14 04:40 AM tiny-tim 1 363 http://en.wikipedia.org/wiki/Partial_fraction_decomposition In general, if you have a proper rational function,... Jan25-14 09:52 PM MathewsMD 6 470 Hey PF. I was wondering if anyone can help me figure out i can tell if certain functions are even or odd. For example,... Jan24-14 05:59 PM PeroK 6 394 I have to integrate -partial^2f/partialx^2 -partial^2f/partialy^2 in the variable x-y How to do this? Jan24-14 08:18 AM HallsofIvy 1 376 Hi, I'm working the following paper ""Plane waves viewed from an accelerated frame, K Srinivasan, L Sriramkumar, T... Jan23-14 10:07 AM Jip 0 430

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