Index: /trunk/doc/pslib/psLibSDRS.tex
===================================================================
--- /trunk/doc/pslib/psLibSDRS.tex	(revision 1757)
+++ /trunk/doc/pslib/psLibSDRS.tex	(revision 1758)
@@ -1,3 +1,3 @@
-%%% $Id: psLibSDRS.tex,v 1.116 2004-09-09 19:45:58 price Exp $
+%%% $Id: psLibSDRS.tex,v 1.117 2004-09-09 20:12:21 price Exp $
 \documentclass[panstarrs,spec]{panstarrs}
 
@@ -2155,4 +2155,8 @@
 typedef float (*psMinimizeLMFunc)(psVector *deriv, const psVector *params, const psArray *coords);
 \end{verbatim}
+An example may help here.  We say that the coordinate vectors may be
+several (and hence use a \code{psArray} for \code{coords}), since
+often one will want to minimize $\chi^2$, given a data set consisting
+of vectors for $x$, $y$ and $\sigma_y$.
 
 Then \code{psMinimizeLM} shall mimimize the specified function,
@@ -2160,5 +2164,5 @@
 
 \begin{verbatim}
-bool psMinimizeLM(psMinimization *min, psMatrix *covar, psVector *params, const psVector *paramMask,
+bool psMinimizeLM(psMinimization *min, psImage *covar, psVector *params, const psVector *paramMask,
                   const psArray *coords, psMinimizeLMFunc func);
 \end{verbatim}