# Calculus

- Elementary functions. Calculating limits, derivatives and integrals. Optimization problems
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 Meta Thread / Thread Starter Last Post Replies Views Views: 4,889 Announcement: Follow us on social media and spread the word about PF! Jan16-12 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 46,556 Hey folks, I've been stuck on this for two days now so I'm hoping for some hints from anyone... I'm trying to... Aug23-08 09:11 AM mhill 1 2,404 I'd like to map the open unit circle to the open ellipse x/A^2 + y/B^2 = 1. How would I go about doing this? I... Jun30-08 02:57 AM urisan 1 12,453 in the .pdf article http://repository.dl.itc.u-tokyo.ac.jp/dspace/bitstream/2261/6027/1/jfs080104.pdf i have ... Jun4-08 02:10 PM CompuChip 1 2,598 i need a full explanation on finite element method or better still a material i can read to help me understand better Jun9-08 03:17 PM maze 1 2,761 Hi, I'm currently trying to decipher an equation in a paper I'm reading for research of my own. However, I am running... Jun11-08 04:33 PM Mute 1 1,569 Lagarias’ equivalence to the Riemann hypothesis should be discussed, i.e., if hn := n-th harmonic number := 1/1 + 1/2... Jun11-08 05:31 AM mhill 1 2,924 should every whole number that curve x crosses be taken into consideration when constructing a polar graph? For... Jun12-08 08:13 AM HallsofIvy 1 1,503 Evaluate the limit and indicate appropriate limit laws. lim square root of u^4+3u+6 u->-2 Evaluate the limit ... Jun17-08 03:00 PM arildno 1 1,467 \int \, dt The above are all vectors. How would one go about integrating this, the answer is apparently a... Jun21-08 06:50 AM tiny-tim 1 1,306 Discussion: This is a proposed solution to problem 2-13 in Apostol's "Mathematical Analysis". The method came to me... Jun23-08 10:58 PM uman 1 836 Change the Cartesian integral to the equivalent polar integral and evaluate: Integral of (x dx dy), limits of... Jun25-08 11:40 PM nicksauce 1 8,151 Hi folks, I have a function f(t), and I want to find 2nd order polynomials that lower/upper bound f(t) in a fixed... Jun30-08 04:34 AM aantam 1 3,094 I'm trying to find the regular parallelepiped with sides parallel to the coordinate axis inscribed in the ellipsoid... Jul2-08 09:38 AM HallsofIvy 1 1,259 We have y=f(x), and get the inverse by uing the first function and solving it for x and get x=g(y). (F and g are... Jul4-08 03:19 PM HallsofIvy 1 1,057 hi guys just a quick proof i need help with please: if a = pi / (2-b) prove the integral from 0 to pi/2 of d(b)... Jul9-08 03:52 AM CompuChip 1 1,080 Is it possible to write the triangle inequality in 2 ways: 1. d(x,z) <= d(x,y) + d(y,z) 2. d(x,y) <= d(x,z)... Jul9-08 09:53 AM HallsofIvy 1 1,200 How do I show that A={r in Q: r^3<2} is a Dedekind cut. Here is the definition I am working with. A subset A... Jul13-08 02:59 PM HallsofIvy 1 1,508 When a problem with a number of equations is given, asking to find its volume, a student has a choice between the... Jul15-08 12:12 AM Defennder 1 2,482 Hello! I have the following formula - a*k1 + b*k2 + c*k3 = P This is a formula i'm trying to build. It will be used... Jul16-08 01:35 AM atqamar 1 951 I have an EPW that I don't quite know how to get started. Below is the EPW question and then after that is what I am... Jul22-08 12:33 AM Evales 1 976 I'm not sure whether to post this in the Mathematics or Physics forums, but I figure this problem is easily reduced to... Jul25-08 01:53 PM roam 1 1,290 I get the impression that unlike solving derivatives and integrals, sequences and series do not have a lot of...should... Jul26-08 10:48 AM quasar987 1 2,107 Hey ppl.... Is x/x differentiable at x = 0 Now i know that it is not defined at x=0 but the function does... Jul28-08 07:00 AM HallsofIvy 1 1,175 Is it mathematically possible for a series to be first declared "possibly not divergent" via the Test For Divergence,... Jul28-08 01:54 PM sour_kremlin 1 1,345 See http://camoo.freeshell.org/cohomquest.pdf thanks Laura Jul29-08 02:39 PM lark 1 1,117 Just a really quick sanity check. This equation... \nablasU = \nablaU - n*(n \bullet \nablaU) ...the correct... Aug1-08 06:19 PM Hootenanny 1 2,442 im just curious. it has been bugging me about the beginning of the movie where the professor asks Ben a question and... Aug8-08 12:50 AM nicksauce 1 2,024 Just got some strange equation from relativistic travel problem : {\it PA} \left( t \right) =\lim _{{\it... Aug9-08 01:00 PM rhz_prog 1 1,389 I am going to provide my answer to a complex integral and i was just seeking a few pointers as to weather i was on the... Aug10-08 05:12 PM Count Iblis 1 1,112 My question is : when z=f(x,y) is written down ... it's assume that we're working in the cartesian plane with... Aug14-08 12:34 AM Defennder 1 1,157 Hi. In this solution(page 2) to Jackson 1.5 it is stated that \nabla^2... Aug14-08 09:29 AM Anthony 1 1,265 On my post titled double integrals you explained why limits go from x^2 to x when integrating wrt y (i.e. the "bottom"... Aug14-08 01:40 PM NoMoreExams 1 1,036 I need help with the following integrals Aug18-08 07:52 AM statdad 1 993 iv egot 1/2ln|(1-z)/(z+3)|=Ln|v|+c does this go to ln |(1-z)/(z+3)|1/2=Ln|v|+c which goes to... Aug19-08 11:34 AM nicksauce 1 1,018 Hi everyone. I'm a brazilian mathmatician that didn't studied complex analysis. I study finance and now I'm needing... Aug21-08 02:29 PM Feanor 1 2,127 given z is complex, sketch the following locus on the Argand diagram: {(z-3+j)/(z-j) }= square roots of 5 { }=... Aug21-08 06:47 AM HallsofIvy 1 1,048 cos pi= -1 using the 360 circle ir those quadrants i forgot what it was, link Aug23-08 05:23 AM HallsofIvy 1 8,924 I try to find the solution of the integrals below for more than a week. \int_{p>0}^{\infty}\frac{\exp}{p}dp can... Aug23-08 09:05 AM CompuChip 1 968 http://en.wikipedia.org/wiki/Vector_potential The Wikipedia article is mentioning an interesting formula for... Aug24-08 06:25 AM jostpuur 1 1,886 f(x)=x/x^2+1 f'(x)= 1-x^2/(x^2+1)^2 But then I can't seem to work through taking the 2nd derivative, perhaps I am... Aug25-08 09:33 AM CompuChip 1 1,235

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