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visits member for 1 year, 10 months
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Apr
28
asked Probabilities of throws of Archimedian solids
Mar
30
comment Permutation similar of direct sum of a matrix
Google helps often fairly well in matters of definition: en.wikipedia.org/wiki/Permutation_matrix
Mar
28
answered Matrix with determinant 0
Mar
27
awarded  Supporter
Mar
27
comment Accumulated sum of integer random variables
I further surmise that the assumption of iid is too strong for that result.
Mar
27
comment Accumulated sum of integer random variables
I think that in the limiting case the sum would be uniformly distributed.
Mar
27
comment Accumulated sum of integer random variables
No constraint on distribution.
Mar
27
asked Accumulated sum of integer random variables
Mar
23
awarded  Tumbleweed
Mar
16
asked Bijective mappings in [0, 2^n-1] that are not too expensive in computation costs
Mar
10
comment What exactly do eigenvalue and eigenvector indicate?
See mathworld.wolfram.com/Eigenvalue.html which has a sentence about that.
Jan
26
comment proving that a point is the center of a circle
There seems to be an error in the formulation of the problem. For if that's generally true, then it is impossible to have 10 (a constant) in DE = 10 + AB.
Dec
25
comment The last three digits of $3\times7\times11\times15\times \cdots \times 2003$
Sorry, typo: Please read: "we have f(500)=875".
Dec
25
answered The last three digits of $3\times7\times11\times15\times \cdots \times 2003$
Nov
26
awarded  Guru
Nov
26
awarded  Good Answer
Nov
26
awarded  Mortarboard
Nov
26
awarded  Nice Answer
Nov
26
awarded  Yearling
Nov
26
awarded  Teacher