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Mathematics
Mark Emacr's user avatar
Mark Emacr's user avatar
Mark Emacr's user avatar
Mark Emacr
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  • Member for 10 years, 7 months
  • Last seen more than 10 years ago
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question
4
Does $\sum_{n=2}^{\infty}\frac{\cos\left(\frac{\pi n^2}{n+1}\right)}{(\log n)^2}$ converge?
Jan 25, 2014
question
4
Taylor expansion for Si(x)?
Jan 28, 2014
question
3
Given two symmetric, real, positive definite matrices, $A,B$ such that $AB=BA$, prove that $AB$ is positive definite.
Feb 6, 2014
question
3
For a given $A$, find a matrix $B$ such that $B^2=A$
Feb 6, 2014
question
2
Solve $x^3 = 27\pmod {41}$
Jan 18, 2014
question
2
Stuck on the integral: $\int x^2(1-x^2)^{1/2}\, dx$
Jan 25, 2014
question
2
Finding Fourier coefficients?
Jan 26, 2014
question
2
Does the integral of sin(xlogx) from 0 to infinity converge?
Jan 26, 2014
question
2
What is $\int_{-\pi}^\pi \cos(nx)\cos(mx)\,dx$?
Jan 27, 2014
question
2
For what real values of a does the integral $\int\limits_0^1(-\ln x)^a\,dx$ converge?
Jan 27, 2014