incompleteBeta
incompleteBeta (
a
,
b
,
x
)
I
x
(
a
,
b
) = 1/beta(
a
,
b
)∫
0
x
t
a
-1
(1-
t
)
b
-1
dt,
for 0 ≤
x
≤ 1 and
a
and
b
and
a
+
b
not equal to a negative integer.
© djmw 20071024