# igivenPFn: Interest rate given Future value, Number of periods, and... In iemisc: Irucka Embry's Miscellaneous Functions

## Description

Compute i given F, n, and P

## Usage

 1 igivenPFn(P, F, n) 

## Arguments

 P numeric vector that contains the present value(s) F numeric vector that contains the future value(s) n numeric vector that contains the period value(s)

## Details

i is expressed as

i = √[n]{\frac{F}{P}} - 1

i

the "effective interest rate per interest period"

F

the "future equivalent"

P

the "present equivalent"

n

the "number of interest periods

## Value

i numeric vector that contains the effective interest rate as a percent rounded to 2 decimal places

## References

William G. Sullivan, Elin M. Wicks, and C. Patrick Koelling, Engineering Economy, Fourteenth Edition, Upper Saddle River, New Jersey: Pearson/Prentice Hall, 2009, page 128-129, 142.

## Examples

 1 2 3 library("iemisc") # Example for equation 4-6 from the Reference text (page 128) igivenPFn(P = 500, F = 1000, n = 10) 

iemisc documentation built on Aug. 2, 2020, 9:07 a.m.