procedure binocoef: binomial coefficient procedure cosh: hyperbolic cosine procedure sinh: hyperbolic sine procedure tanh: hyperbolic tanh
link math
December 26, 1995; Ralph E. Griswold
Requires: Large integer arithmetic for binocoef(n, k) for all but small
values of n and k.
This file is in the public domain.
binocoef(n, k) produces the binomial coefficient n over k. It
fails unless 0 <= k <= n.
cosh(r) produces the hyperbolic cosine of r.
sinh(r) produces the hyperbolic sine of r.
tanh(r) produces the hyperbolic tangent of r.