ZGESC2 solves a system of linear equations


           A * X = scale* RHS


 with a general N-by-N matrix A using the LU factorization with


 complete pivoting computed by ZGETC2.

N

          N is INTEGER


          The number of columns of the matrix A.

A

          A is COMPLEX*16 array, dimension (LDA, N)


          On entry, the  LU part of the factorization of the n-by-n


          matrix A computed by ZGETC2:  A = P * L * U * Q

LDA

          LDA is INTEGER


          The leading dimension of the array A.  LDA >= max(1, N).

RHS

          RHS is COMPLEX*16 array, dimension N.


          On entry, the right hand side vector b.


          On exit, the solution vector X.

IPIV

          IPIV is INTEGER array, dimension (N).


          The pivot indices; for 1 <= i <= N, row i of the


          matrix has been interchanged with row IPIV(i).

JPIV

          JPIV is INTEGER array, dimension (N).


          The pivot indices; for 1 <= j <= N, column j of the


          matrix has been interchanged with column JPIV(j).

SCALE

          SCALE is DOUBLE PRECISION


           On exit, SCALE contains the scale factor. SCALE is chosen


           0 <= SCALE <= 1 to prevent overflow in the solution.

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Bo Kagstrom and Peter Poromaa, Department of Computing Science, Umea University, S-901 87 Umea, Sweden.