Syntax: @F(M, N, X)
M, N = degrees of freedom
X = upper bound
@F returns the integral of Snedecor's F-distribution with M and N degrees of freedom from minus infinity to X. The function is given by:
Examples:
@F(14, 35, 99) = 1
@F(D3, W2, Y8) = Error - @F, degrees of freedom must be >0, where D3 = .5, W2 = 0, and Y8 = .99
@F(B1, B2, B3) = 0.77459667, where B1 = 1, B2 = 2, and B3 = 3