.help iszero Aug85 "Surfit Package"
.ih
NAME
iszero -- set up for a new surface fit
.ih
SYNOPSIS
iszero (sf)

.nf
pointer	sf		# surface grid descriptor
.fi
.ih
ARGUMENTS
.ls sf     
Pointer to the surface grid descriptor structure.
.le
.ih
DESCRIPTION
ISZERO zeros all matrices and vectors used by the fitting program. It
should be used only if one wishes to refit the surface from scratch.
.ih
NOTES
.ih
SEE ALSO
isinit, islzero, islaccum, islfit, islrefit, islsolve, issolve, isfree
.endhelp