F-distribution. The cdf F(x) equals 1 - Q(F) in
HP-21S. The degrees of freedom are specified
in J and K.
Return the first or second derivative of f(x), re-
spectively, with the function f(x) being specified
in a routine starting with LBL label. The return
stack will have y, z, and t cleared and the posi-
tion x in L.
Either command will attempt to call a user rou-
tine labeled 'step size dx. If
that routine is not defined, a step size of 0.1 is
employed instead.
Returns the Greatest Common Divisor of x
and y .
Geometric distribution:
Geom
P
returns
, being
the probability for a first success after m = x
Bernoulli experiments. The probability p
0
for
a success in each such experiment must be
specified in J.
Geom
1
returns the number of failures f before
the first success for given probabilities F
Ge
in X
and p
0
in J.
Sets angular mode to gon or grads.
Takes x as given in gon or grads and converts
them to the angular mode currently set.
Inserts an unconditional branch to label.
Positions the program pointer to label.
,
, , or
Positions the program
pointer
(not programmable).
labels, if defined.
Takes the first three characters of alpha (or less
if there are less available) as a label and posi-
tions the program pointer to it.