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author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
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committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
tree | 4464880c571602d54f6ae114729bf62a89518057 /math/curfit/doc/cvsolve.hlp | |
download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'math/curfit/doc/cvsolve.hlp')
-rw-r--r-- | math/curfit/doc/cvsolve.hlp | 39 |
1 files changed, 39 insertions, 0 deletions
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 |