In accordance with NEP 32, the function numpy.fv() was removed from NumPy version 1.20. A replacement for this function is available in the numpy_financial library: https://pypi.org/project/numpy-financial
The numpy.fv() method is “used to calculate the future value”. Future cash flows are measured at the discount rate, and the higher the discount rate, the lower the potential cash flow’s present value.
Syntax
numpy.fv(rate, nper, pmt, fv, when='end')
Parameters
This function takes five arguments:
- rate: This decimal value indicates the interest rate per period. This can be a scalar or an array.
- nper: This indicates a total compounding period. This can be a scalar or an array.
- pmt: This parameter indicates the fixed payment. This can be a scalar or an array.
- fv: This parameter indicates the future value. This can be a scalar or an array. The default value is 0.0
- when: At the beginning (when = {‘begin’, 1}) or the end (when = {‘end’, 0}) of each period.
Return value
The NumPy fv() function returns a float type value, which indicates the Present Value after the nper period.
Example 1: How to Use np.fv() Method
import numpy as np
rate = 0.10
nper = 10 * 12
pmt = -200
fv = 1100
print("Future Value after a period of ", nper, " is :")
print(np.fv(rate, nper, pmt, fv, when='end'))
Output
Future Value after a period of 120 is:
83436161.93604787
Example 2: Calculating the future values
import numpy as np
rate = np.array((.12, .30, .45))
nper = np.array((100, 120, 50))
pmt = (100, -300, -100)
fv = (-100, 50, 150)
print("Present Value after a period of ", nper, " is :")
print(np.fv(rate, nper, pmt, fv, when='end'))
Output
Present Value after a period of [100 120 50] is :
[-6.12488282e+07 4.47636903e+16 8.45416944e+09]
That’s it!
Ankit Lathiya is a Master of Computer Application by education and Android and Laravel Developer by profession and one of the authors of this blog. He is also expert in JavaScript and Python development.
