numpy.ipmt() in Python (original) (raw)
Last Updated : 29 Nov, 2018
numpy.ipmt(rate, nper, pv, fv, when = ‘end’)
: This financial function helps user to compute payment value as per the interest only. i.e. returns the interest part.
Parameters : rate : [scalar or (M, )array] Rate of interest as decimal (not per cent) per periodnper : [scalar or (M, )array] total compounding periodsfv : [scalar or (M, )array] Future valuepv : [scalar or (M, )array] present valuewhen : at the beginning (when = {‘begin’, 1}) or the end (when = {‘end’, 0}) of each period.Default is {‘end’, 0}Return : Payment value ie. the interest part of it.
Equation being solved :
fv + pv*(1+rate)**nper + pmt*(1 + rate*when)/rate*((1 + rate)**nper - 1) == 0 or when rate == 0fv + pv + pmt * nper == 0
Code:
Python3 1== `
Python program explaining
ipmt() function
import numpy as np ''' Question :
monthly payment needed to pay off a $10, 000 loan in 12 years at an annual interest rate of 60 % '''
Solution = np.ipmt(0.6 / 12, 2 * 12, 1 * 12, 10000)
Here fv = 0 ; Also Default value of fv = 0
print("Solution - ipmt value : ", Solution)
`
Output:
Solution - ipmt value : 801.4432933339593