df(x, n1, n2) pf(x, n1, n2) qf(x, n1, n2) rf(x, n1, n2)
n1 and n2 degrees of freedom.
df gives the density,
pf gives the distribution function
qf gives the quantile function
and
rf generates random deviates.
The F distribution with n_1 and n_2 degrees of freedom has density
Equations will come with HTML3
for x >= 0.