**LA_GBSVX** computes the solution to a real or complex linear
system of equations of the form , or ,
where is a square band matrix and and are rectangular matrices
or vectors.

**LA_GBSVX** can also optionally equilibrate the system if is
poorly scaled, estimate the condition number of (the equilibrated) ,
return the pivot growth factor, and compute error bounds.

Susan Blackford 2001-08-19