numpy.pv() in Python (original) (raw)

Last Updated : 29 Nov, 2018

numpy.fv(rate, nper, pmt, fv, when = ‘end’) : This financial function helps user to compute future values.

Parameters :

rate : [array_like] Rate of interest as decimal (not per cent) per period
nper : [array_like] total compounding periods
pmt : [array_like] fixed payment
fv : [array_like, optional] future value. Default = 0.0
when : at the beginning (when = {‘begin’, 1}) or the end (when = {‘end’, 0}) of each period. Default is {‘end’, 0}

Return :

present value as per given parameters.

Equation being solved :

fv + pv*(1 + rate)nper + pmt(1 + rate*when)/rate((1 + rate)**nper - 1) = 0

or when rate == 0

fv + pv + pmt * nper = 0

Code 1 : Working

import numpy as np

Solution = np.pv( 0.05 / 12 , 10 * 12 , - 100 , 15692.93 )

print ( "present value (fv) : " , Solution)

Output :

present value (fv) : -100.000671316

Reference :
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.pv.html

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