390 reputation
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visits member for 2 years
seen Jan 20 at 1:26

This guy is too lazy to say anything ...


Sep
23
awarded  Popular Question
Aug
7
awarded  Yearling
May
28
awarded  Nice Question
Apr
25
revised How to judge if a point is in the interior of a closed curve or not?
added 16 characters in body; edited title
Apr
25
comment How to judge if a point is in the interior of a closed curve or not?
sorry, I mean "inside"
Apr
25
asked How to judge if a point is in the interior of a closed curve or not?
Jan
18
comment How can I fit a matrix function with multiple variables to given eigenvalues?
I did this, using an object function to describe the total deviation between the calculated eigenvalues and the data. And then using NMinimize or FindMinimum. However, the result is far from reasonable.
Jan
17
asked How can I fit a matrix function with multiple variables to given eigenvalues?
Jan
17
comment How can I get Mathematica to simplify my expression?
@Mr.Wizard, it works for 0.25, but not work for 0.26.
Jan
17
comment How can I get Mathematica to simplify my expression?
This does not work for 2. Sqrt[0.25 - b/3] . I just want all things are within Sqrt.
Jan
17
asked How can I get Mathematica to simplify my expression?
Jan
16
accepted How to eliminate the zero real part of a purely imaginary number?
Jan
15
asked How to eliminate the zero real part of a purely imaginary number?
Jan
10
awarded  Nice Answer
Jan
5
accepted Mathematica9 linux version crash, how to fix it?
Jan
2
awarded  Editor
Jan
2
revised Mathematica9 linux version crash, how to fix it?
added 7 characters in body
Jan
2
awarded  Self-Learner
Jan
2
awarded  Teacher
Jan
2
answered Mathematica9 linux version crash, how to fix it?