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Jul
16
comment How many possible ways of stacking 12 red, 12 green, and 12 blue poker chips so that no blue is touching one another?
@Brian: ...oh right. This is why I almost never got a perfect score on a math test despite being good at the theoretical bits... :P
Jul
16
revised How many possible ways of stacking 12 red, 12 green, and 12 blue poker chips so that no blue is touching one another?
Had an error.
Jul
16
comment How many possible ways of stacking 12 red, 12 green, and 12 blue poker chips so that no blue is touching one another?
@Brian: Yes, you are correct. I forgot the last item is determined by the other $n+k-1$ items.
Jul
16
answered How many possible ways of stacking 12 red, 12 green, and 12 blue poker chips so that no blue is touching one another?
Jul
15
comment Periodic sequences on finite alphabet
Just to notify...@AD.
Jul
15
revised Periodic sequences on finite alphabet
Added code.
Jul
15
comment Periodic sequences on finite alphabet
Okay I'll add the program. Here's hoping the white-space transfers correctly...
Jul
15
comment Periodic sequences on finite alphabet
@AD: What do you mean by "accurate"?
Jul
15
answered Periodic sequences on finite alphabet
Jul
15
comment Periodic sequences on finite alphabet
My intuition is actually that periodicity is not forced, but that's all it is; intuition, not a proof.
Jul
14
revised Marriage problem
LaTeK formatting.
Jul
14
suggested approved edit on Marriage problem
Jul
1
accepted Using floor, ceiling, square root, and factorial functions to get integers
Jul
1
awarded  Nice Question
Jul
1
comment Derive $\frac{d}{dx} \left[\sin^{-1} x\right] = \frac{1}{\sqrt{1-x^2}}$
@Aryabhata: Ah, yes, you are correct. Bill has already corrected his answer so I'm just gonna leave mine the way it is.
Jun
30
answered Finding the real roots of a polynomial
Jun
30
answered Derive $\frac{d}{dx} \left[\sin^{-1} x\right] = \frac{1}{\sqrt{1-x^2}}$
Jun
30
asked Using floor, ceiling, square root, and factorial functions to get integers
Jun
29
awarded  Nice Question
Jun
27
answered Conway's game of life variations