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Aug
26
revised Abuse of notation ? $(A\mid M_{n\times p})$ to denote a set of matrices…
edited title
Aug
26
revised Abuse of notation ? $(A\mid M_{n\times p})$ to denote a set of matrices…
added 6 characters in body
Aug
26
revised Abuse of notation ? $(A\mid M_{n\times p})$ to denote a set of matrices…
deleted 39 characters in body
Aug
26
revised Is this “truncating” matrix function well known?
deleted 3 characters in body
Aug
20
revised Prove a function containing integrals is positive
edited body
Aug
20
revised Is there a name for a general upper triangular hollow matrix?
added 48 characters in body
Aug
4
revised A name for the property $ \| x \star y \| = \| x \| \| y \| $.
deleted 7 characters in body
Aug
3
revised Finding a homography in $\hat {\Bbb {C}} $
edited body
Jul
29
revised How to prove $\frac{2^a+3}{2^a-9}$ is not a natural number
added 32 characters in body
Jul
29
revised How to prove $\frac{2^a+3}{2^a-9}$ is not a natural number
added 108 characters in body
Jul
29
revised How to prove $\frac{2^a+3}{2^a-9}$ is not a natural number
deleted 9 characters in body
Jul
29
revised How to prove $\frac{2^a+3}{2^a-9}$ is not a natural number
added 37 characters in body
Jul
29
revised Points on 3d line
added 242 characters in body
Jul
29
revised Points on 3d line
added 303 characters in body
Jul
27
revised evaluate $\frac 1{1+\sqrt2+\sqrt3} + \frac 1{1-\sqrt2+\sqrt3} + \frac 1{1+\sqrt2-\sqrt3} + \frac 1{1-\sqrt2-\sqrt3}$
deleted 17 characters in body
Jul
27
revised evaluate $\frac 1{1+\sqrt2+\sqrt3} + \frac 1{1-\sqrt2+\sqrt3} + \frac 1{1+\sqrt2-\sqrt3} + \frac 1{1-\sqrt2-\sqrt3}$
deleted 41 characters in body
Jul
23
revised Logarithmic Integral II
deleted 251 characters in body
Jul
23
revised How to solve $z^3 + \overline z = 0$
added 466 characters in body
Jul
23
revised Simple Logarithms Equation
added 30 characters in body
Jul
13
revised How to remember trig identities?
added 108 characters in body