BETA
The
BETA function returns the value of the beta function B(
Z, W
).
This routine is written in the IDL language. Its source code can be found in the file
beta.pro
in the
lib
subdirectory of the IDL distribution.
Calling Sequence
Result = BETA(
Z, W
)
Arguments
Z, W
The point at which the beta function is to be evaluated.
Z
and
W
can be scalar or array.
Keywords
DOUBLE
Set this keyword to force the computation to be done in double-precision arithmetic.
Example
To evaluate the beta function at the point (1.0, 1.1) and print the result:
PRINT, BETA(1.0, 1.1)
IDL prints:
0.909091
The exact solution is:
((1.00 * .95135077) / (1.10 * .95135077)) = 0.909091.
