For a square nonsingular matrix, A, of order N, subroutines are provided
for solving systems of equations involving the matrix A or At
(Ah
in the complex case), and for computing the inverse,
determinant, or (reciprocal) condition number of A. Versions are
provided for REAL, DOUBLE PRECISION and COMPLEX data types.
This software is part of the MATH77/mathc90 collection here.