Remember factorials
like the things in math that were like
4! and it would be 4*3*2
yeah what was the point to that
why did we learn that
Analysis, man. Probability, permutations, combinations and shit.
nPr = n!/(n-r)! and nCr = n!/(r!(n-r)!)
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its-am-chan reblogged this from post-cactus and added:
so that mathematicians could have an excuse to throw !s into math problems.
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post-cactus reblogged this from wheatley-blogs and added:
Analysis, man. Probability, permutations, combinations and shit.nPr = n!/(n-r)! and nCr = n!/(r!(n-r)!)
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wheatley-blogs posted this