asa005, a C code which evaluates the lower tail of the noncentral T distribution, by BE Cooper.
This is a version of Applied Statistics Algorithm 5.
The computer code and data files described and made available on this web page are distributed under the MIT license
asa005 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
asa076, a C code which evaluates the Owen's T function, needed to compute the CDF of the noncentral T distribution.
asa243, a C code which evaluates the CDF of the noncentral T distribution.
owen, a C code which evaluates Owen's T function.
Original FORTRAN77 version by BE Cooper; C version by John Burkardt.