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diff --git a/math/gsurfit/doc/gssolve.hlp b/math/gsurfit/doc/gssolve.hlp new file mode 100644 index 00000000..8ddf42fc --- /dev/null +++ b/math/gsurfit/doc/gssolve.hlp @@ -0,0 +1,40 @@ +.help gssolve Aug85 "Gsurfit Package" +.ih +NAME +gssolve -- solve a linear system of equations by the Cholesky method +.ih +SYNOPSIS +include <math/gsurfit.h> + +gssolve (sf, ier) + +.nf +pointer sf # surface descriptor +int ier # error code +.fi +.ih +ARGUMENTS +.ls sf +Pointer to the surface descriptor structure. +.le +.ls ier +Error code returned by the fitting routines. The options are OK, SINGULAR, +and NO_DEG_FREEDOM. If ier = SINGULAR the matrix is singular, GSSOLVE +will compute a solution to the normal equations but one or more of the +coefficients will be zero. If ier = NO_DEG_FREEDOM, too few data points +exist for a reasonable solution to be computed. GSSOLVE returns without +fitting the data. +.le +.ih +DESCRIPTION +GSSOLVE computes the Cholesky factorization of the data matrix and +solves for the coefficients +of the fitting function by forward and back substitution. An error code is +returned by GSSOLVE if it is unable to solve the normal equations as +formulated. +.ih +NOTES +.ih +SEE ALSO +gsfit, gsrefit, gsaccum, gsacpts +.endhelp |