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The cash flow functions in the math unit resolve the following equation:
FV + PV * q^n + PMT (q^n  1) / (q  1) = 0
In this formula, the following variables are present:
The financial functions FutureValue, NumberOfPeriods, Payment, PresentValue and InterestRate solve this equation for one of the variables, when the other variables are known.

Calculate the future value of an investment. 


Calculate the number of periods for an investment 


Calculate the payment for an investment 


Calculate the present value given the future value of an investment. 


Type used in financial (interest) calculations. 