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Apr
25
asked how to solve this nested summation?
Apr
18
accepted divisibility theorem proof?
Apr
18
comment divisibility theorem proof?
This is the one to blame for @TedShifrin: amazon.com/Discrete-Mathematics-Technology-Rowan-Garnier/dp/…
Apr
18
comment divisibility theorem proof?
No @TedShifrin, I have put it exactly as it appears on the book
Apr
18
asked divisibility theorem proof?
Apr
1
comment cross partition proof
could you be so gentle to add the direct proof in the last part of your answer? @Brian M. Scott, I am really interested to see how to do it.
Mar
31
comment cross partition proof
thank you @Brian M. Scott, one question more; the last part you are proving it by contradiction, is that right? If I want to prove it by direct proof can I say that in your the last part of your formula P0 int P1=null set and Q0 int Q1=null set also, because they are disjoint, so the intersection of both will be also null set?
Mar
29
comment cross partition proof
sorry @AlexM. I have corrected it.
Mar
29
revised cross partition proof
added 4 characters in body
Mar
29
asked cross partition proof
May
30
asked simplification of a linear algebra equation
May
4
asked how to interpret the singularity spectrum?
Apr
30
accepted proof by contradiction
Apr
30
asked proof by contradiction
Apr
26
accepted derivation of formula of the maximum likelihood
Apr
26
asked derivation of formula of the maximum likelihood
Apr
26
comment about derivative of a matrix and trace
could you be so kind to give me an insight or formulae explaining why the trace appears there?
Apr
26
comment about derivative of a matrix and trace
I am still lost why the author uses the trace on the third line
Apr
25
asked about derivative of a matrix and trace
Apr
21
accepted contour plot in multiple linear regression