file vfftpack/doc for user guide for vfftpack file vfftpack/vsinti.f for Initialization routine for VSINT gams -0- file vfftpack/vsint.f for Forward or backward transform for multiple odd sequences gams J1a3 file vfftpack/vsinqi.f for Initialization routine for VSINQF and VSINQB gams -0- file vfftpack/vsinqf.f for Forward transform of multiple odd sequences with only odd wave numbers (quarter-wave sine transform) gams J1a3 file vfftpack/vsinqb.f for Backward transform for multiple odd sequences with only odd wave numbers (quarter-wave sine transform) gams J1a3 file vfftpack/vrffti.f for Initialization routine for VRFFTF and VRFFTB gams -0- file vfftpack/vrfftf.f for Forward transform of multiple real periodic sequences gams J1a1 file vfftpack/vrfftb.f for Backward transform for multiple real periodic sequences gams J1a1 file vfftpack/vcosti.f for Initialization routine for VCOST gams -0- file vfftpack/vcost.f for Forward or backward transform for multiple even sequences gams J1a3 file vfftpack/vcosqi.f for Initialization routine for VCOSQF and VCOSQB gams -0- file vfftpack/vcosqf.f for Forward transform of multiple even sequences with only odd wave numbers (quarter-wave cosine transform) gams J1a3 file vfftpack/vcosqb.f for Backward transform of multiple even sequences with only odd wave numbers (quarter-wave cosine transform) gams J1a3 file vfftpack/pimach.f file vfftpack/vradb2.f file vfftpack/vradb3.f file vfftpack/vradb4.f file vfftpack/vradb5.f file vfftpack/vradbg.f file vfftpack/vradf2.f file vfftpack/vradf3.f file vfftpack/vradf4.f file vfftpack/vradf5.f file vfftpack/vradfg.f file vfftpack/vrftb1.f file vfftpack/vrftf1.f file vfftpack/vrfti1.f file vfftpack/f90.tgz for fft by Simon Clarke lang Fortran90 .