14,142 reputation
21771
bio website
location
age
visits member for 1 year, 9 months
seen 5 mins ago

15m
revised Unpacked eigenvectors of complex matrices
added 55 characters in body
Aug
16
awarded  Nice Answer
Jul
2
awarded  Curious
Jun
4
comment Why Refine does not simplify Cos[2*Pi*FractionalPart[1/2*(i + j + k)]] to $(-1)^{i+j+k}$?
@Mr.Wizard I'm sorry that I have no spare time to participate on this site now. I hope I'll be back in September or earlier. I was glad to talk with Leonid at the recent Wolfram conference in St. Petersburg.
May
7
awarded  Necromancer
Apr
12
awarded  Good Answer
Apr
10
awarded  Nice Answer
Apr
7
awarded  Nice Answer
Feb
27
awarded  Revival
Feb
11
awarded  Enlightened
Feb
11
awarded  Nice Answer
Feb
3
comment Why Refine does not simplify Cos[2*Pi*FractionalPart[1/2*(i + j + k)]] to $(-1)^{i+j+k}$?
@Artes I think that it is not a duplicate since Refine/FullSimplify works bad with FractionalPart.
Feb
3
revised Why Refine does not simplify Cos[2*Pi*FractionalPart[1/2*(i + j + k)]] to $(-1)^{i+j+k}$?
A small typo fixed
Feb
3
revised Why Refine does not simplify Cos[2*Pi*FractionalPart[1/2*(i + j + k)]] to $(-1)^{i+j+k}$?
Please, do not mix Mathematica code and LaTeX
Feb
3
answered Why Refine does not simplify Cos[2*Pi*FractionalPart[1/2*(i + j + k)]] to $(-1)^{i+j+k}$?
Feb
1
reviewed Approve suggested edit on Why is a bump function making NDSolve take forever to solve?
Feb
1
reviewed Close Exploiting a relation among constants
Feb
1
revised Convergence problems with numerical integration of specific functions
Improved formatting
Feb
1
answered Why TensorReduce not working here?
Feb
1
awarded  Nice Answer