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age 42
visits member for 1 year, 9 months
seen 11 hours ago

Apr
14
revised How do you sketch a parabola given the equation?
LaTeX for formula
Apr
13
revised If a nonempty set of real numbers is open and closed, is it $\mathbb{R}$? Why/Why not?
Added a short initial description about what the proof does
Apr
13
revised Proof that $\det(A)=\det(A^T)$ using permutations.
edited title
Apr
13
revised Multiplying Adjacent Matrices?
added 2 characters in body
Apr
13
revised Multiplying Adjacent Matrices?
mathematics formatting
Jan
26
revised 100 prisoners and a light bulb
added solution when the starting day is not known
Aug
19
revised Prove a transformation is skew-symmetric
edited title
Aug
7
revised What is the Peano definition of subtraction?
math formatting
Aug
5
revised Find the remainder when $11^{2013}$ is divided by $ 61$
edited title
Aug
2
revised Whether $(0,1)$ and $(0,1]$ are homeomorphic
edited body
Jul
31
revised What is the definition of an extremum of a function?
deleted 1 characters in body; edited title
Jul
30
revised $\operatorname{div}(\mathbf{F} \times \mathbf{G})$ with Einstein Summation Notation
Replaced non-formula LaTeX by proper Markdown
Jul
30
revised What does limit actually mean?
added 1 characters in body
Jul
30
revised How is the property called that makes $(a\cdot b)/c = (a/c)\cdot b = a\cdot (b/c)$
added 25 characters in body; edited title
Jul
29
revised Why does $16^0 = 1$ and not $0$
added 274 characters in body
Jul
24
revised What does this series converge to?
edited title
Jul
23
revised $\operatorname{div}(\mathbf{F} \times \mathbf{G})$ with Einstein Summation Notation
answered 3.3/3.4
Jul
23
revised Existence of a Bijective Map
Added some clarifications, and chose arbitrary point $o$ instead of origin
Jul
22
revised $\operatorname{div}(\mathbf{F} \times \mathbf{G})$ with Einstein Summation Notation
fixed usage of $F$ where $G$ should have been used
Jul
21
revised Solve $\sin (x)=\sin(2x)$, $0 \leq x \leq 2\pi$
Math formatting and typo fixed