2004-04-12  Morten Welinder  <terra@gnome.org>

	* src/mathfunc.c (pow1p, pow1pm1): New functions.

2004-04-12  Morten Welinder  <terra@gnome.org>

	* functions.c (calculate_fvifa, calculate_pvif,
	calculate_interest_part, price, gnumeric_effect, gnumeric_nominal,
	gnumeric_mirr, irr_npv, irr_npv_df, callback_function_npv,
	gnumeric_xnpv, xirr_npv): Improve precision for small rates using
	new pow1p and pow1pm1.