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visits member for 2 years, 3 months
seen Mar 26 at 17:17

Mar
21
awarded  Popular Question
Jun
8
awarded  Constituent
Jun
8
awarded  Caucus
Apr
24
answered How to solve this Diophantine Equation. Step by Step
Apr
11
comment Good math software
umm, octave is a good clone of mathcad, and its opensource, but really - mathematics, computer science are vast areas - need to be more specific - are you looking for software that is designed for educational purposes or software which aids in computation, problem solving etc.
Apr
9
comment Is it unheard of to say that you like math but hate proofs?
I do have a few qualms with the amount of importance given to the axiomatic method, where most of the rigor, axioms and proofs are usually worked out after the fact. In A typical abstract algebra book the first few chapters are on notation, axioms etc (boring), the fascinating stuff comes later and rigor is built after the initial creative act. That being said, good for you if you instantly intuitively see the correctness of the many mathematical proofs without going through the formal derivation - i surely don't, and without the rigor, one cannot assert validity to another person.
Mar
26
comment Determining angle to cut two boards
mycarpentry.com/roof-framing.html
Mar
17
accepted Suppose two $n\times n$ matricies, $A$ and $B$, how many possible solutions are there.
Mar
17
comment Help with trigonometry?
bit.ly/a8GLzI
Mar
17
asked Suppose two $n\times n$ matricies, $A$ and $B$, how many possible solutions are there.
Mar
12
accepted Security analysis of a matrix multiplication protocol
Mar
11
accepted Making the entries of a matrix positive.
Mar
11
revised Making the entries of a matrix positive.
added 241 characters in body
Mar
11
comment Making the entries of a matrix positive.
thanks, but what if M was non-invertable, could a pseudo-inverse help perhaps?
Mar
11
comment Making the entries of a matrix positive.
yes, it would be ideal if B=abs(M) element-wise. also would there be a solution if M was non-invertable?
Mar
11
revised Making the entries of a matrix positive.
added 12 characters in body
Mar
11
comment Making the entries of a matrix positive.
Yes, edited the question thx.
Mar
11
asked Making the entries of a matrix positive.
Mar
10
comment Random walk with reset?
A weighted random walk? projecteuclid.org/…
Mar
9
comment If $A$, $B$, $C$, $D$ are arbitrary matrices in $\mathrm{GL}(n, \mathbb{R})$, prove $AB\neq CD$.
Suppose AB or CD cannot be equal to I