Index: /trunk/archive/pslib/include/psMinimize.h
===================================================================
--- /trunk/archive/pslib/include/psMinimize.h	(revision 333)
+++ /trunk/archive/pslib/include/psMinimize.h	(revision 334)
@@ -12,5 +12,5 @@
  */
 
-/** Minimize a particular function */
+/** Minimize a particular non-linear function */
 psFloatArray *
 psMinimize(float (*myFunction)(const psFloatArray *restrict),	//!< Function to minimize
@@ -30,8 +30,9 @@
     );
 
-/** Derive a polynomial fit by least-squares --- can be done analytically */
+/** Derive a polynomial fit by chi^2 minimisation --- can be done analytically */
 psFloatArray *
-psGetArrayPolynomial(const psFloatArray *restrict ord, //!< Ordinates (or NULL to just use the indices)
-		     const psFloatArray *restrict coord //!< Coordinates
+psGetArrayPolynomial(const psFloatArray *restrict x, //!< Ordinates (or NULL to just use the indices)
+		     const psFloatArray *restrict y, //!< Coordinates
+		     const psFloatArray *restrict yErr //!< Errors in coordinates, or NULL
     );