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Aug
22
revised Indefinite integral: $\int \frac{\sqrt{x^2-6x+18}}{x-3}dx$
improved formatting
Aug
22
suggested approved edit on Indefinite integral: $\int \frac{\sqrt{x^2-6x+18}}{x-3}dx$
Aug
22
revised Double Integral $\int_{0}^{4} \int_{\sqrt{x}}^{2} \frac{1}{1+y^3} \mathrm{d}y\;\mathrm{d}x$
improved math formatting
Aug
22
suggested approved edit on Double Integral $\int_{0}^{4} \int_{\sqrt{x}}^{2} \frac{1}{1+y^3} \mathrm{d}y\;\mathrm{d}x$
Aug
22
revised A closed form of $\int_0^1\frac{\ln\ln\left({1}/{x}\right)}{x^2-x+1}\mathrm dx$
some formatting improvements
Aug
22
suggested approved edit on A closed form of $\int_0^1\frac{\ln\ln\left({1}/{x}\right)}{x^2-x+1}\mathrm dx$
Aug
22
comment What is the concept behind …?
Concept of vector calculus.
Aug
22
comment Integral of inverse of square root of a quadratic
@Starior Because there are infinitely, but uncountable set of rings; and sum can only been used on a countable set of rings.
Aug
21
revised Approximate summation of the given equation
improved math formatting
Aug
21
suggested approved edit on Approximate summation of the given equation
Aug
21
comment calculus / algebra
Is this from some physics textbook? Share the context.
Aug
21
comment Integral of inverse of square root of a quadratic
@Starior Yes. I used $+\delta$.
Aug
21
comment Integral of inverse of square root of a quadratic
@Starior I used the cylindric coordinates, where $z$ is a line of symmetric of this rings.
Aug
21
answered Integral of inverse of square root of a quadratic
Aug
21
comment Integral of inverse of square root of a quadratic
@Starior Use Gauss law for this.
Aug
21
comment Integral of inverse of square root of a quadratic
@Starior Provide a physical context of problem. That would be more useful than the pointless $a$, $b$, $c$, $g$ and $q$.
Aug
21
comment Integral of inverse of square root of a quadratic
What's that? Replace $c$ by $g$, than you need to only integrate a constant. The question is malformed, btw.
Aug
20
suggested rejected edit on Power series function expansion as solution for integral equation
Aug
20
comment How to integrate $\frac{1}{(x^3-a^3)^3}$ for a few limits
Why didn't I notice this by myself? That's an awesome and easy way to do this!
Aug
20
revised Test the convergence of a series
Improved typesetting