Bug in diff.c

[Brian Gough]

Asterio Gonzalez writes:
 > There is a bug in file diff.c
 > Line 51:
 > 	  d[i] = f->f (w->evaluation_point, 0);
 > must be
 > 	  d[i] = f->f (w->evaluation_point, f->params);
 >
 > The evaluate function fails when you must use 'params' info,
 > so this way passes params to evaluate function.

Thanks for the bug report, now fixed in CVS (also for lines 81, 83).

regards
Brian Gough