Combination
The number of ways of picking 
unordered outcomes from 
possibilities. Also known as the BinomialCoefficient or Choice Number and read `` choose .''
where
is a Factorial.See also Binomial Coefficient, Derangement, Factorial, Permutation, Subfactorial
References
Conway, J. H. and Guy, R. K. ``Choice Numbers.'' In The Book of Numbers. New York: Springer-Verlag, pp. 67-68, 1996. Ruskey, F. ``Information on Combinations of a Set.'' http://sue.csc.uvic.ca/~cos/inf/comb/CombinationsInfo.html.
- Butterfly Fractal
- Butterfly Polyiamond
- Butterfly Theorem
- Bäcklund Transformation
- Bézier Curve
- Bézier Spline
- C
- C*
- Cable Knot
- Cactus Fractal
- Cake Cutting
- Cal
- Calabi's Triangle
- Calabi-Yau Space
- Calculus
- Calculus of Variations
- Calcus
- Calderón's Formula
- C*-Algebra
- Caliban Puzzle
- Calvary Cross
- Cameron's Sum-Free Set Constant
- Cancellation
- Cancellation Law
- Cannonball Problem