2000-04-07  Morten Welinder  <terra@diku.dk>

	* src/collect.h (CollectFlags): Get rid of COLLECT_IGNORE_POSITIVE
 	and COLLECT_IGNORE_NEGATIVE.

	* src/collect.c (callback_function_collect): Don't have the above
 	flags.

	* src/functions/fn-financial.c (irr_npv_df): New function.
	(gnumeric_irr): Use irr_npv_df for better results.
	(gnumeric_ipmt, gnumeric_ppmt): Fix order of arguments!  (It works
 	so much better that way.)
	(gnumeric_mirr): Fix formula.

	* src/goal-seek.c (update_data): Spelling fix.

	* src/functions/fn-financial.c (gnumeric_rate, gnumeirc_irr,
 	gnumeric_xirr): Use the supplied guess.