2000-07-07  Morten Welinder  <terra@diku.dk>

	* src/functions/fn-math.c (gnumeric_sumproduct): Rewrite with lots
 	of care in error handling.

	* src/value-sheet.c (value_area_get_width): Make it official that
 	scalars have width 1.
	(value_area_get_height): Likewise.
	(value_area_get_x_y): Likewise.