.BG
.VE $Header: /usr3/s/current/s/.help/RCS/backsolve,v 1.2 83/12/30 19:24:30 rab Exp $
.FN backsolve
.TL
backsolve: Backsolve Upper- or Lower-triangular Equations
.CS
backsolve(r, x, lower)
.PP
.AG r
upper or lower triangular matrix.
.AG x
right-hand sides to equations.
.AG lower
logical flag to indicate lower-triangular `r'.
Default FALSE.
.RT
matrix like `x' of the solutions `y' to the equations `r y=x'.
.KW array*
.KW algebra
.KW linear algebra
.WR
