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Calculus

- Elementary functions. Calculating limits, derivatives and integrals. Optimization problems
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Jan16-12 Greg Bernhardt
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 45,427
I'm currently in first year calculus, and I'm having trouble remembering all my trig for use in derivatives. I have...
Oct26-09 05:57 PM
lurflurf
2 1,805
given a function g(x) so the integral \int_{-\infty}^{\infty}dx g(x) exists could we find a complex valued...
Oct26-09 01:26 PM
g_edgar
2 1,258
I am trying to see why exactly the momentum eignenstates for a free particle are orthogonal. Simply enough, one gets:...
Oct26-09 01:20 PM
g_edgar
1 2,246
i have a relation z4 + x2z = x5 , now i differenciate it implictly to find dz/dx , but if we observe carefully we...
Oct26-09 12:06 PM
HallsofIvy
2 771
Hi My book defines one-to-one mapping as A mapping T is one-to-one on D* if for (u,v) and (u',v') ∈ D*, T(u,v)...
Oct26-09 12:01 PM
HallsofIvy
6 2,129
I am having a hard time understanding the difference between poles and zeros, and simple poles versus removable poles....
Oct26-09 10:59 AM
skook
5 5,237
Hey Folks, first post here, I'm having significant difficulty understanding how to create an analytic continuation...
Oct26-09 10:45 AM
skook
1 759
A car is traveling at 40.7 mi/h on a horizontal highway. The acceleration of gravity is 9.8 m/s/s. If the...
Oct25-09 08:11 PM
kza62
5 1,891
are there lots of examples of non-measurable sets? the one that seems to be in most textbooks involves a type of...
Oct25-09 06:59 PM
g_edgar
1 1,145
I am trying to follow along with the text's derivation of the Bernoulli equation and I am a little confused with a...
Oct25-09 03:26 PM
Saladsamurai
4 3,895
Hey Guys, I've been banging my head with this one for a few days now. I've done (a) and (b) but I'm yet to do (c)...
Oct25-09 02:58 PM
Clef
7 903
I understand the concepts of domain and range/image, but can somebody explain to me what the co-domain of a function...
Oct25-09 02:51 PM
Hurkyl
2 2,068
In a sinusoidal function...suppose the value of δ is very large...then as x approaches any a, the value of f(x) might...
Oct25-09 01:53 PM
emyt
8 5,250
I am in a 12th grade Physics class and in the beginning of the year, we learned the calculus based equation: /h. I...
Oct25-09 11:19 AM
emyt
6 8,557
Basically, I have used microwaves in a wave guide to measure the width of the guide via standing waves. This led me to...
Oct25-09 07:15 AM
Zorba
1 681
:confused: hi, this will be my first post on the forum, although i in the past have looked over it! um, this is...
Oct24-09 11:51 PM
mbsl5
12 8,239
Just spent the last few months working on an undergrad course in complex analysis and have a couple of things that...
Oct24-09 02:52 PM
skook
2 2,599
Hi, I'm working on a related rates problem, and I need to find the derivative of the volume of a cone. So the...
Oct24-09 01:41 PM
Flieger
10 58,866
Dear all, I am recently exposed to the distribution theory. Why are "test" functions called "test" functions? What...
Oct24-09 01:02 PM
Hurkyl
6 1,060
I'm having a hard time creating a tidy equation to solve this seemingly simple problem. I have two points in...
Oct23-09 11:03 AM
Verox
2 1,768
Sorry but i have a question regarding Laplace Equation, say if a potential function P represents the inverse square...
Oct23-09 07:30 AM
danong
2 2,217
Hi, I have a mixed integer non-linear model and I need to determine convexity or non-convexity. the objective...
Oct23-09 05:05 AM
mousemouse
0 594
Fekete's Lemma states that if {a_n} is a real sequence and a_(m + n) <= a_m + a_n, then one of the following two...
Oct23-09 02:06 AM
foxjwill
1 3,291
I know that for any two real sequences x_n and y_n, we have \liminf_{n\to \infty} x_n + \liminf_{n\to \infty} y_n...
Oct22-09 11:38 AM
AxiomOfChoice
2 2,450
I've recently read about Null Identities of vector analysis. I'm having a problem in understanding what is it by...
Oct22-09 11:35 AM
danong
4 762
I was wondering that the continuity of a function is an actually function of these δs...if they are large they might...
Oct22-09 06:27 AM
HallsofIvy
32 2,832
Hello, I am in my 3rd semester at college, I have take Calculus 1,2,3 (derivatives, integrals, vector calculus) and...
Oct21-09 03:44 PM
mikeph
1 859
Is any one aware of the verity of the following inequality <= F(1, (p-1)/2; (p+2)/2; x) where F(a, b; c; x) is...
Oct21-09 11:54 AM
Andrew Magyar
0 643
The integral of ln(1-x) is -(1-x)ln(1-x)-x, when 0<=x<=1. So for example: \int_{0}^{1} ln (1-x)dx=...
Oct21-09 11:10 AM
HallsofIvy
1 2,398
I'm trying to show that any uncountable set has a countable subset. First, let me point out that the distinction...
Oct20-09 10:35 PM
VeeEight
1 588
Hi, in gamma function gamma(1/2)=factorial(-1/2)=(pi)^(1/2) but how did it? i don't understand that because the...
Oct20-09 06:54 PM
lurflurf
12 3,944
I have to prove from the definiton of the limit of a function that the limit of f(x) as x tends to 2 equlas 3, given...
Oct20-09 01:43 PM
Juggler123
7 997
I have a question regarding fluid streamline vector, why is it different from the usual position vector when you take...
Oct20-09 10:14 AM
arildno
3 1,229
I'm trying to remember a limit I was supposed to have memorized for calc. Is this right? limx-->0 /x = 0 ...
Oct19-09 06:06 PM
lurflurf
2 1,010
Could anyone prove or disprove the following inequality: ||x||_{p}\leq||x||_{p'} for all x\in\mathbb{R}^{n} if...
Oct19-09 04:19 PM
trambolin
3 651
According to supremum and infimum principle, nonempty set A={x|x\inQ,x2<2} is upper bounded, so it should have a...
Oct19-09 02:49 PM
HallsofIvy
5 2,113
Hi everyone I've been dealing with a rather difficult (at least for me) integration problem which I am not able to...
Oct19-09 08:52 AM
g_edgar
2 875
Please compute M'(t) and M''(t)? M(t) = (pe^t)^r ------------ (1-qe^t)^r
Oct19-09 08:52 AM
arildno
5 742
I have a problem understanding the following: I should calculate the Fourier transform of a product of three...
Oct18-09 04:50 PM
parton
2 928
Hi, I have a question about infinite limit of complex integral. Problem: Consider the function ln(1+\frac{a}{z^{n}})...
Oct18-09 04:13 PM
riquelme
0 761

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