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Dec
20
awarded  Constituent
Dec
16
awarded  Caucus
Sep
24
awarded  Yearling
Aug
24
revised Special solutions to Ax = 0
added 62 characters in body
Aug
24
answered Special solutions to Ax = 0
Aug
20
comment Special solutions to Ax = 0
Given an arbitrary mn matrix M, how should one algorithmically go about to compute its null space (that contains all vectors v with Mv=0)? Thanks in advance.
Apr
28
asked Probabilities of throws of Archimedian solids
Mar
28
answered Matrix with determinant 0
Mar
27
awarded  Supporter
Mar
23
awarded  Tumbleweed
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