python 中的 numpy.pv()
哎哎哎:# t0]https://www . geeksforgeeks . org/num py-PV-python/
numpy.fv(rate，nper，pmt，fv，when = 'end') : 该金融功能帮助用户计算未来价值。
参数:
利率:【array _ like】每期十进制(非百分比)利率 nper:【array _ like】总复利期 PMT:【array _ like】定期付款 Fv:【array _ like，可选】未来值。默认值= 0.0 当:在每个周期的开始(当= {'begin '，1})或结束(当= {'end '，0})时。默认值为{'end '，0}
返回:
present value as per given parameters.
正在求解的方程:
fv + pv*(1 + rate)**nper +
pmt*(1 + rate*when)/rate*((1 + rate)**nper - 1) = 0
或者当速率== 0 时
fv + pv + pmt * nper = 0
代码 1:工作
## Python program explaining pv() function
import numpy as np
'''
Question :
What is the present value (e.g., the initial investment)
of an investment that needs to total $15692.93 after 10
years of saving $100 every month?
Assume the interest rate is 5% (annually) compounded monthly.
'''
# rate np pmt fv
Solution = np.pv(0.05/12, 10*12, -100, 15692.93)
print("present value (fv) : ", Solution)
输出:
present value (fv) : -100.000671316
参考: https://docs . scipy . org/doc/numpy-1 . 13 . 0/reference/generated/numpy . PV . html
