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Home MathPack Statis Functions BinomCoeff  
See also: LnBinomCoeff, LnBeta, LnGamma, Factorial, HyperGeoDistriDensity  
BinomCoeff 

The function BinomCoeff calculates the binomial coefficient (n,k), which is the number of possible combinations when drawing k items out of a total set of n. The binomial coefficient is defined by the following formula:
The parameters n, and k have to be positive, with n >= k. If this condition is not fulfilled, BinomCoeff returns a zero value. Please note that the binomial coefficient may become too large to be returned as longint value. In this case an EInvalidOp exception is generated. If you expect large binomial coefficients you maybe want to use the function LnBinomCoeff, which calculates the natural logarithm of it.
