1,853 reputation
1412
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location United States
age
visits member for 2 years, 4 months
seen 5 hours ago

Jul
2
awarded  Curious
Mar
30
awarded  Yearling
Mar
26
comment Riddle: 1 question to know if the number is 1, 2 or 3
Let's say "Yes" denotes 1, "No" denotes 2, "I don't know" denotes 3, what's your number?
Oct
31
accepted Low-rank matrix approximation in terms of entry-wise $L_1$ norm
Oct
25
revised Low-rank matrix approximation in terms of entry-wise $L_1$ norm
added 4 characters in body
Oct
25
asked Low-rank matrix approximation in terms of entry-wise $L_1$ norm
Oct
11
awarded  Popular Question
Aug
27
accepted Examples of 2D wave equations with analytic solutions
Aug
17
accepted How to describe this relation?
Aug
16
awarded  Nice Answer
Aug
14
revised How to describe this relation?
added 81 characters in body
Aug
14
revised How to describe this relation?
added 19 characters in body
Aug
14
revised How to describe this relation?
added 3 characters in body
Aug
14
asked How to describe this relation?
Jun
2
revised transform that is invariant under rotation
added 2 characters in body
Jun
2
comment transform that is invariant under rotation
@user79365 $\mathbb{R}^2$ is good enough, but $\mathbb{R}^n$ is even better.
Jun
2
asked transform that is invariant under rotation
May
30
accepted Geometrical meanings of diagonalizable and normal matrices
May
23
awarded  Civic Duty
May
8
asked solve a “wave equation” with an extra term