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seen Jan 23 at 9:54

Jun
30
asked Help need in Mathematica or Sage
Jun
28
awarded  Editor
Jun
28
revised Expectation of an event
added 126 characters in body
Jun
28
asked Expectation of an event
Jun
28
comment Expectation of an event
I take three random integer r,s,t in [1,1000] with replacement. And 1. Set A[r]=1 2. Set A[s]=1 if A[t]=0 3. A[t]=1 if A[s]=0.
Jun
25
asked Expectation of an event
Jun
24
comment Commutative Matrix Problem
Thanks for the details.
Jun
20
comment Commutative Matrix Problem
It is clear that polynomial in B must be commutative with B. Will you kindly explain why converse is true?
Jun
20
comment Commutative Matrix Problem
Will you kindly give the details?
Jun
19
awarded  Student
Jun
19
comment Commutative Matrix Problem
Thanks for LaTeX. Yes, identity or zero matrix satisfies the condition but I want to find general form.
Jun
19
asked Commutative Matrix Problem