Index: trunk/archive/pslib/include/psMinimize.h
===================================================================
--- trunk/archive/pslib/include/psMinimize.h	(revision 753)
+++ trunk/archive/pslib/include/psMinimize.h	(revision 1422)
@@ -34,9 +34,16 @@
 /** Derive a polynomial fit by chi^2 minimisation --- can be done analytically */
 psPolynomial1D *
-psVectorFitPolynomial(psPolynomial1D myPoly, ///< Polynomial to fit
- 		      const psVector *restrict x, ///< Ordinates (or NULL to just use the indices)
-		      const psVector *restrict y, ///< Coordinates
-		      const psVector *restrict yErr) ///< Errors in coordinates, or NULL
+psVectorFitPolynomial1D(psPolynomial1D *myPoly, ///< Polynomial to fit
+			const psVector *restrict x, ///< Ordinates (or NULL to just use the indices)
+			const psVector *restrict y, ///< Coordinates
+			const psVector *restrict yErr) ///< Errors in coordinates, or NULL
 ;
+
+psSpline1D *
+psVectorFitSpline1D(psSpline1D *mySpline, ///< Spline to fit
+		    const psVector *x,	///< Ordinates (or NULL to just use the indices)
+		    const psVector *y,	///< Coordinates
+		    const psVector *yErr ///< Errors in coordinates, or NULL
+    );
 
 /* \} */ // End of MathGroup Functions