rate,pmt,pv,fv,type!Returns the number of periods for an investment based on periodic, constant payments and a constant interest ...

!rate,pmt,pv,fv,type!!Returns the number of periods for an investment based on periodic, constant payments and a constant interest rate!is the interest rate per period. For example, use 6%/4 for quarterly payments at 6% APR!is the payment made each period; it cannot change over the life of the investment!is the present value, or the lump-sum amount that a series of future payments is worth now!is the future value, or a cash balance you want to attain after the last payment is made. If omitted, zero is used!is a logical value: payment at the beginning of the period = 1; payment at the end of the period = 0 or omitted!