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Mathematics
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jjagmath
  • Member for 6 years, 1 month
  • Last seen this week
  • Mexico
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I have a PhD in Mathematics in the area of ​​Number Theory, but I am a fan of all areas of Pure Mathematics.

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30
Paradox: Roots of a polynomial require less information to express than coefficients?
Mar 10, 2021
20
trying to solve the nested sum $\sum_{n=1}^{\infty} \frac{1}{1^2+2^2+\dots+n^2} $
Jun 27, 2022
17
Correlation between $\sqrt{1/10}$ and length of powers of integers.
Mar 21, 2022
17
Conjecture: $\lim\limits_{x\to 0}(x!\,x!!\,x!!!\,x!!!!\cdots )^{-1/x}\stackrel?=e$
Sep 6, 2022
17
Evaluate $\lim_{n \to \infty} n \prod_{m = 1} ^ n \left(1 - \frac1m + \frac5{4m ^ 2}\right)$
Jun 7, 2023
16
Why can't I use trig substitution for this integral?
Feb 28, 2022
15
How does this definition of a topology on $X$ not cause $X \in X$?
Aug 19, 2022
14
Is multiplication of two complex numbers that are inside a complex regular polygon still in this polygon?
Apr 3
10
Does this pattern for the order of $2$ modulo a power of a prime always hold?
Nov 21, 2023
9
Why does cumulative division seem to converge to $\pi$ and the error gets $\pi/2$ digits
Aug 8, 2022
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12
Input automatic replacement not working in 12.3 or 12.3.1
6
Problem with my user name
6
How to enter underscripts in 12.2?