SYNOPSIS REAL FUNCTION CLA_GBRPVGRW( N, KL, KU, NCOLS, AB, LDAB, AFB, LDAFB ) IMPLICIT NONE INTEGER N, KL, KU, NCOLS, LDAB, LDAFB COMPLEX AB( LDAB, * ), AFB( LDAFB, * ) PURPOSE CLA_GBRPVGRW computes ... . ARGUMENTS