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Aug
29
comment Why is $\vec{x}$ in $A\vec{x}=\vec{b}$ in $\mathbb{R}^n$, when $A$ is an m x n matrix and $\vec{b}$ is in $\mathbb{R}^m$?
Thank you for the example! I know how matrix multiplication works, but I was too nearsighted to see the relation to $\mathbb{R}^n$ and $\mathbb{R}^m$.
Aug
29
revised Why is $\vec{x}$ in $A\vec{x}=\vec{b}$ in $\mathbb{R}^n$, when $A$ is an m x n matrix and $\vec{b}$ is in $\mathbb{R}^m$?
\textbf to \mathbb
Aug
28
revised $Y= X+N$ what is ${\rm E}(X|Y=y)$
Added latex.
Aug
28
suggested approved edit on $Y= X+N$ what is ${\rm E}(X|Y=y)$
Aug
28
revised Polynomials and Linear Operators
Added latex.
Aug
28
suggested approved edit on Polynomials and Linear Operators
Aug
28
revised Finding the maximum average revenue
Added latex, fixed some grammar and spelling.
Aug
28
suggested approved edit on Finding the maximum average revenue
Aug
28
revised Density Question - Statistics
Added latex.
Aug
28
suggested approved edit on Density Question - Statistics
Aug
28
revised Uniform $(-1,1)$ distribution
Added latex.
Aug
28
suggested approved edit on Uniform $(-1,1)$ distribution
Aug
28
revised Cauchy's integral question
Uppercase C in Cauchy (title)
Aug
28
suggested approved edit on Cauchy's integral question
Aug
28
suggested rejected edit on why if f(z) is analytic in a multiply connected domain D then we cannot
Aug
28
suggested rejected edit on shows that if $P(z)$ has no complex zero, then $\frac{1}{P(z)}$ is bounded
Aug
28
awarded  Excavator
Aug
28
revised Prove that $A=B$, that is $a_{ij}=b_{ij}$, for all $i,j$
Added latex.
Aug
28
suggested approved edit on Prove that $A=B$, that is $a_{ij}=b_{ij}$, for all $i,j$
Aug
28
revised Compute the Fourier transform of $f(t) = \sin t$?
Added latex.