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Math — Permutations vs Combinations

When order matters, and when it does not.

Venn / EulerMathematicsVenn / Euler syntax docs
Template previewVenn / Euler
Permutations vs combinationsPermutations (P)Combinations (C)Order matters; nPr = n! / (n-r)!Order does not matter; nCr = n! / (r!(n-r)!)Choose r from n; use factorials; counting techniques

Make it your own.

title "Permutations vs combinations"
set P "Permutations"
set C "Combinations"
only "P" "Order matters; nPr = n! / (n-r)!"
only "C" "Order does not matter; nCr = n! / (r!(n-r)!)"
intersect "P,C" "Choose r from n; use factorials; counting techniques"