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Apr
25
comment Inclusion-exclusion principle: Number of integer solutions to equations
I agree, I think it's $C(12 + 4 - 1, 3) = C(15,3)$.
Apr
16
awarded  Nice Question
Apr
13
comment Can (x'y' + xy) be simplified?
@Brandon: You should probably write that as an answer.
Apr
13
comment Draw customized (calculus) graphs like these?
Not sure whether to flag it, but I have enough rep to retag stuff so I got rid of the graph-theory tag.
Apr
13
revised Draw customized (calculus) graphs like these?
edited tags
Apr
12
suggested rejected edit on Probability of having at least 'k' marbles specific to each of 'm' bags filled by sampling with replacement
Mar
31
comment Interpreting “lying on the parabolas”
Out of curiosity, how do you get Mathematica to make that?
Mar
27
revised On deriving the arclength of a hyperbola
Just formatting.
Mar
27
suggested approved edit on On deriving the arclength of a hyperbola
Mar
20
comment Numbers satisfying $\binom{n}{k} = m!$
I just wrote a script and I don't believe there are any others up to 13! (except of course $\binom{n}{0}$ and $\binom{n}{1}$).
Mar
20
revised expected area of a triangle determined by randomly placed points
fix formatting again
Mar
20
suggested approved edit on expected area of a triangle determined by randomly placed points
Mar
20
revised expected area of a triangle determined by randomly placed points
fixed formatting
Mar
20
suggested approved edit on expected area of a triangle determined by randomly placed points
Mar
20
revised Non-Standard Deviation
absolute value instead of diff()
Mar
20
awarded  Organizer
Mar
20
revised Salt concentration as a function of time
edited tags
Mar
20
suggested approved edit on Non-Standard Deviation
Mar
20
comment Is $\nu_1\perp\nu_2$ equivalent to $|\nu_1|\perp|\nu_2|$ for complex measure?
You may want \perp instead of \bot; the spacing is better with \perp.
Mar
20
revised Quicksort with Trivalued Logic
angle brackets were being screwy and confused