php functions
relevance_pic
Generates a simple .jpg image of variable size
and gradient color given a relevance score and two
boundary colors. Useful for search engine query
results. Requires GD library extension.
factorial
Calculates the factorial of an integer with
arbitrary digit length. Requires BC Math library
extension.
nPk
Calculates the number of possible permutations
of k elements that can be taken from a
set of n elements. Useful for
determining large results in combinatorics
calculations. Requires BC Math library
extension.
nCk
Calculates the number of possible combinations
of k elements that can be taken from a
set of n elements. Useful for
determining large results in combinatorics
calculations. Requires BC Math library
extension.
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