Reputation
8,201
Top tag
Next privilege 10,000 Rep.
Access moderator tools
Badges
18 41
Newest
 limits
Impact
~172k people reached

May
29
revised definite integral of a complex function
added 1 character in body
May
8
reviewed Approve Prove non-existance of limit: $f(x,y) = \frac{xy\sin(\frac{x}{y})}{x^2 + |y|^3}$
Mar
23
revised how to show the following seriers is not convergent
deleted 11 characters in body
Mar
23
revised Trigonometry Simplification
added 8 characters in body
Mar
23
revised Trigonometry Simplification
added 2 characters in body
Feb
28
awarded  limits
Feb
27
awarded  Popular Question
Feb
27
awarded  Nice Answer
Jan
24
awarded  Notable Question
Dec
30
revised Show that all derivatives of $f(x) = \frac{\sin(2\pi x)}{\pi x}$ belong to $L^2(\mathbb{R})$
added 3 characters in body; edited title
Dec
19
awarded  Constituent
Dec
14
comment I have a question about integrating, and what to do about the constant. $\displaystyle\int\frac{1}{1-z}dz$
If you know the initial value of the function, then the value of the constant can be determined. In this case, the value of the function at $x=0$ is zero. Because we know that sum of zeros is zero.
Dec
12
comment Show that $\int_0^a f(x)dx=\int_0^a f(a-x)dx$
let $y=a-x$ then usual substitution
Dec
12
revised Find $\lim_{x \to 0}\frac{2^x-1}x$
added 1 character in body
Dec
12
comment Laurent Series of $f(z)=(z+1)\sin\frac{z^{2}+2z+5}{(z+1)^{2}}$
@user101998 how about using formula $\sin(a+b)$ ??
Dec
11
answered What is a limit?
Dec
9
awarded  Caucus
Dec
7
comment Proof of a Gaussian Integral property
try completing square on the exponent.
Dec
4
comment When does $\ln(x)=\sin(x)$?
looks like there is no nice expression for the answer. You can use numerical approach the find the approximate value.
Dec
4
revised When does $\ln(x)=\sin(x)$?
edited title