Texas Instruments BA II PLUS - Manual (Page 78)

74 Other Worksheets
6. To compute a value for the unknown variable (interest rate), press #
or " until NOM or EFF is displayed, and then press %. The
calculator displays the computed value.
Example: A bank offers a certificate that pays a nominal interest rate of
15% with quarterly compounding. What is the annual effective interest
rate?
Answer: A nominal interest rate of 15% compounded quarterly is
equivalent to an annual effective interest rate of 15.87%.
Date Worksheet
Date Worksheet Variables
To Press Display
Select Interest Conversion
worksheet. & v NOM= 0
Enter nominal interest rate. 15 ! NOM= 15.00 
Enter number of compounding
periods per year. # # 4 ! C/Y= 4.00 
Compute annual effective
interest rate. " % EFF= 15.87 
Use the Date worksheet to find the number of days
between two dates. You can also compute a date and day
of the week based on a starting date and a specified
number of days.
• To access the Date worksheet, press & u.
• To access the date variables, press # or ".
• To select the day-count method ( ACT and 360 ), press
& V once for each option.
Variable Key Display Variable Type
Date 1 & u DT1 Enter/compute
Date 2 # DT2 Enter/compute
Days between dates # DBD Enter/compute
Actual/actual day-count method # ACT * Setting
30/360 day-count method # 360 * Setting