(math-use-emacs-fn): Make sure that the number is formatted correctly.

lisp/ChangeLog

@@ -1,3 +1,8 @@
+2009-07-03  Jay Belanger  <jay.p.belanger@gmail.com>
+
+	* calc-math.el (math-use-emacs-fn): Make sure that the number is
+	formatted correctly.
+
 2009-07-02  Juri Linkov  <juri@jurta.org>
 
 	* info.el: Virtual Info files and nodes.

lisp/calc/calc-math.el

@@ -106,7 +106,11 @@ If this can't be done, return NIL."
                (number-to-string
                 (funcall fn 
 			 (string-to-number 
-			  (let ((calc-number-radix 10))
+			  (let 
+                              ((calc-number-radix 10)
+                               (calc-float-format (list 'float calc-internal-prec))
+                               (calc-group-digits nil)
+                               (calc-point-char "."))
 			    (math-format-number (math-float x)))))))
             (error nil))))))