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Jul
25
awarded  Enlightened
Jul
25
awarded  Nice Answer
Jul
14
revised Is $ \sum_{n=-\infty}^\infty x^n=0 $?
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Jul
14
comment Fourier transforms of $f(t)=\frac{\sin{at}}{t}$
+1 very nice answer. You wrote all steps in clear way.
Jul
14
revised Is $ \sum_{n=-\infty}^\infty x^n=0 $?
added 161 characters in body
Jul
13
comment Is $ \sum_{n=-\infty}^\infty x^n=0 $?
I updated my question . Can there be any connection with Ramanujan’s mysterious expression about infinity sum of numbers with my infinity sum result? . It was strange in the begining before checking the result for extention zeta function
Jul
13
revised Is $ \sum_{n=-\infty}^\infty x^n=0 $?
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Jul
13
revised Is $ \sum_{n=-\infty}^\infty x^n=0 $?
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Jul
13
revised Is $ \sum_{n=-\infty}^\infty x^n=0 $?
added 4 characters in body
Jul
13
asked Is $ \sum_{n=-\infty}^\infty x^n=0 $?
Jul
1
awarded  Popular Question
Jun
17
answered Given $x^2 + 4x + 6$ as factor of $x^4 + ax^2 + b$, then $a + b$ is
Jun
16
answered High School Trigonometry ( Law of cosine and sine)
Jun
16
revised Going from $f = u(x,y) +iv(x,y)$ to $f(z) = f(x+iy)$
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Jun
16
answered Going from $f = u(x,y) +iv(x,y)$ to $f(z) = f(x+iy)$
Jun
3
comment How to find minimum distance path between 2 points on a surface
@mathreadler Thanks a lot for your comment. I try to find out theoretical solution for exact shortest path equation via calculus. I know we can do many things via computer algorithms but I am not interested in that way.
Jun
3
revised How to find minimum distance path between 2 points on a surface
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Jun
3
revised How to find minimum distance path between 2 points on a surface
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Jun
2
revised How to find minimum distance path between 2 points on a surface
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Jun
2
comment How to find minimum distance path between 2 points on a surface
We cannot use it here. Because $t_1$ and $t_2$ fixed points. Please check the link I gave.