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diff --git a/math/curfit/doc/cvsolve.hlp b/math/curfit/doc/cvsolve.hlp new file mode 100644 index 00000000..16badae2 --- /dev/null +++ b/math/curfit/doc/cvsolve.hlp @@ -0,0 +1,39 @@ +.help cvsolve Jun84 "Curfit Package" +.ih +NAME +cvsolve -- solve a linear system of eqns by the Cholesky method +.ih +SYNOPSIS +cvsolve (cv, ier) + +.nf +pointer cv # curve descriptor +int ier # error code +.fi +.ih +ARGUMENTS +.ls cv +Pointer to the curve descriptor +.le +.ls ier +Error code returned by the fitting routines. The options are +OK, SINGULAR and NO_DEG_FREEDOM. If ier is SINGULAR the matrix is singular, +CVSOLVE will compute a solution to the normal equationsbut one or more of the +coefficients will be zero. +If ier equals NO_DEG_FREEDOM, too few data points exist for a reasonable +solution to be computed. CVSOLVE returns +without fitting the data. +.le +.ih +DESCRIPTION +CVSOLVE call two routines CVCHOFAC and CVCHOSLV. CVCHOFAC computes the +Cholesky factorization of the data matrix. CVCHOSLV solves for the +coefficients of the fitting function by forward and back substitution. +An error code is returned by CVSOLVE if it is unable to solve the normal +equations as formulated. +.ih +NOTES +.ih +SEE ALSO +cvchofac, cvchoslv +.endhelp |