Argon

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I am teaching myself mathematics ... poorly.


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May
18
 comment Closed form for n-th anti-derivative of $\log x$
Oldham and Spanier in their "The Fractional Calculus" use $\frac{d^{-n}}{dx^{-n}}$
May
18
 comment Closed form for n-th anti-derivative of $\log x$
Basically a duplicate of: math.stackexchange.com/q/13591/27624
May
18
 revised Integrate: $\int_0^{\infty}\frac{\sinh (ax)}{\sinh x} \cos (bx) dx$
added 5 characters in body
May
18
 answered Integrate: $\int_0^{\infty}\frac{\sinh (ax)}{\sinh x} \cos (bx) dx$
May
17
 awarded  Constituent
May
14
 comment How to integrate $\int_0^\infty \frac{1}{1+y^4} dy$
@xyzzyz Updated.
May
14
 revised How to integrate $\int_0^\infty \frac{1}{1+y^4} dy$
added 240 characters in body
May
14
 comment How to integrate $\int_0^\infty \frac{1}{1+y^4} dy$
@xyzzyz It's not difficult to show; I leave it as an exercise.
May
14
 answered How to integrate $\int_0^\infty \frac{1}{1+y^4} dy$
May
13
 revised How can I see if this integral is convergent or not $\int_0^\infty \ \frac{1}{1 + x^4\sin x} \,dx $
added 2 characters in body; edited title
May
9
 answered An easier way to find the integral of: $\int {x\sqrt {2 + x} {\rm{ }}dx} $, where ${u^2} = 2 + x$
May
8
 awarded  Popular Question
May
6
 revised Evaluating Complex Integral.
edited body
May
6
 revised Evaluating Complex Integral.
added 940 characters in body
May
6
 answered Evaluating Complex Integral.
May
6
 revised Good book on evaluating difficult definite integrals (without elementary antiderivatives)?
added 46 characters in body
May
6
 awarded  Caucus
Apr
28
 answered Cauchy principal value of $\int_{\infty}^{-\infty}e^{-ax^2}\cos(2abx) \,dx$
Apr
27
 answered What's the nth integral of $\frac1{x}$?
Apr
21
 revised Sum with binomial coefficients and a square root
edited tags
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