HP 30b Professional manual Keys and Functions, Compounding periods per year C/YR, First period

order of operation, if you wish to override the left-to-right order of entry.

Keys and Functions

Table 1-3 describes the keys and their functions. Use this table for quick refer- ence. For a complete list of functions, refer to the HP 30b Business Profes- sional User’s Guide.

Table 1-3 Keys and Descriptions

Keys	Description
N	Stores or calculates the number of payments or
	compounding periods.
:^	Multiplies a value by the number of payments per year
	and stores as N.
Y	Stores or calculates the nominal, annual interest rate.
:&	Interest Conversion menu. Used to convert between
	Nominal (Nom.%) and Effective (Eff.%) interest rates given
	compounding periods per year (C/YR).
V	Stores or calculates the present value (PV). To a lender or
	borrower, PV is the amount of a loan; to an investor, PV is
	the initial investment. PV always occurs at the beginning of
	the first period.
:?	Sets Begin mode (Beg). Payments occur at the beginning
	of each compounding period.
M	Stores or calculates the amount of each periodic payment.

Getting Started 15