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Mathematics
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Jonathan's user avatar
Jonathan
  • Member for 10 years, 9 months
  • Last seen more than a week ago
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PhD in physics, math hobbyist

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All Questions Answers
Score Newest
answer
128
What is $dx$ in integration?
Sep 21, 2012
answer
60
Explaining the product of two ideals
Jan 30, 2013
answer
36
Why is gradient the direction of steepest ascent?
Oct 29, 2012
answer
24
Find the integer closest to $\ln(2013)$
Feb 28, 2013
answer
22
Diagonalizable matrix $A$ invertible also?
Dec 9, 2012
answer
21
Great arc distance between two points on a unit sphere
Nov 6, 2012
answer
19
Prove $(A^T)^{-1}$ = $(A^{-1})^T$ whenever $A$ is invertible.
May 12, 2013
question
16
Example of unital non-commutative ring with $(ab)^2=(ba)^2$ for all $a,b$
Jun 2, 2013
question
15
A ring with no non-zero nilpotents and $(ab)^2=a^2b^2$ for all $a,b$ must be commutative
Jun 30, 2013
answer
13
Solve $e^x+x=1$
Sep 28, 2012
Top network posts
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47
procedurally generate a sphere mesh
21
what's the use of string.Clone()?
8
Can't send client certificate via SslStream
5
using nested arrays and lists in mathematica
5
Find null points of sinus function

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