Let 0 double left arrow p double left arrow 1 be given and let F be th
e cumulative distribution function of the F-Distribution with (M, N) d
egrees of freedom. This FORTRAN 77 routine is a complement to  wher
e a method was presented to find the inverse of the F-Distribution fun
ction, FINV(M, N, P), using a series expansion technique to find the i
nverse for the Beta Distribution function.