Texas Instruments TI-84 PLUS SILV Guidebook - Page 268
Calculating Interest Conversion, Finding Days between Dates/Defining Payment Method
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Calculating Interest Conversion Calculating an Interest Conversion Use the interest conversion functions (menu items B and C) to convert interest rates from an annual effective rate to a nominal rate (4Nom( ) or from a nominal rate to an annual effective rate (4Eff( ). 4Nom( 4Nom( computes the nominal interest rate. effective rate and compounding periods must be real numbers. compounding periods must be >0. 4Nom(effective rate,compounding periods) 4Eff( 4Eff( computes the effective interest rate. nominal rate and compounding periods must be real numbers. compounding periods must be >0. 4Eff(nominal rate,compounding periods) Finding Days between Dates/Defining Payment Method dbd( Use the date function dbd( (menu item D) to calculate the number of days between two dates using the actual-day-count method. date1 and date2 can be numbers or lists of numbers within the range of the dates on the standard calendar. Note: Dates must be between the years 1950 through 2049. dbd(date1,date2) You can enter date1 and date2 in either of two formats. • MM.DDYY (United States) • DDMM.YY (Europe) Chapter 14: Applications 261