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Oct
19
revised Using parametric differentiation for $\frac{\operatorname d \! y}{\operatorname d \!x}$?
added 121 characters in body; edited title
Oct
19
revised Show that the element $z=i \cos \frac{\pi}{3}+\sin \frac{\pi}{3} = i( \cos \frac{\pi}{3} - i \sin \frac{\pi}{3})$ belongs to $U_{12}$
added 102 characters in body; edited title
Oct
18
revised Differentiate $2\pi x \cos(\pi x^2)$
added 4 characters in body; edited title
Oct
18
comment infinitely many
please improve the title by making it more descriptive of the question
Oct
18
comment $A_1 \cap A_2 \cap \cdots \cap A_n \ne \emptyset$ holds for all $n$. Must it be that $\bigcap_{n = 1}^{\infty} A_n \ne \emptyset$?
@NajibIdrissi : Ahaa! I didn't read the question either :)
Oct
18
comment $A_1 \cap A_2 \cap \cdots \cap A_n \ne \emptyset$ holds for all $n$. Must it be that $\bigcap_{n = 1}^{\infty} A_n \ne \emptyset$?
@NajibIdrissi: yes he did,this is a counter example.
Oct
18
comment What is a closed form for ${\large\int}_0^1\frac{\ln^3(1+x)\,\ln^2x}xdx$?
Holy hell, there must be easier ways than that!
Oct
18
comment Integral of $\int_0^{2\pi} \frac{e^{-it }dt}{e^{it}-z}$
Did you use a software or did you type it out in latex? If you used a software then what is it?
Oct
18
comment What is a closed form for ${\large\int}_0^1\frac{\ln^3(1+x)\,\ln^2x}xdx$?
Did you use some software to compose this or did you type it all in MathJax by hand?
Oct
18
reviewed Approve suggested edit on Integral of $\int_0^{2\pi} \frac{e^{-it }dt}{e^{it}-z}$
Oct
17
reviewed Approve suggested edit on How to find the 4th degree polynomial with given values at $0,1,2,3,4$?
Oct
16
comment Quantifying infinitely large sums such as $\sum_{x\in\mathbb{R}^+} x$
The summation notation used is intuitive and should be left as it is.
Oct
16
comment Convergence of infinite product of prime reciprocals?
@ManRow : I was aware of that example, there was a comment that contained "convergence to 0" in case of infinite products that is no correct, they only diverge to 0.
Oct
16
comment Convergence of infinite product of prime reciprocals?
In case of infinite products they do not converge to zero, they diverge to zero
Oct
16
comment Convergence of infinite product of prime reciprocals?
What does the few expanded product to series look like?
Oct
15
revised Find the maximum and minimum of this set: $\{x \in \mathbb{R}\backslash \mathbb{Q} : x^2 - \pi x \le 0 \} \cup (-5,1)$
edited title
Oct
14
revised Integral $\int \frac{\operatorname d \! x}{\sinh^4 x}$
removed hypergeometric-function tag, as it did not apply to this question
Oct
14
revised Integral $\int \frac{\operatorname d \! x}{\sinh^4 x}$
added 21 characters in body; edited title
Oct
14
revised Limit $\lim_{n\to \infty }\frac{13^n+(-5)^n}{4\dot\ 13^n+(-11)^n }$
edited title
Oct
14
comment Log integrals II
Is this math.stackexchange.com/questions/967189/log-integrals-i Log integrals I?