NumPy NumPy参考

• 数组对象
• 常数
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•    数组创建例程
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•    Mathematical functions with automatic domain (numpy.emath)
•    Floating point error handling
•    Discrete Fourier Transform (numpy.fft)
•    Financial functions
•          numpy.fv
•          numpy.pv
•          numpy.npv
•          numpy.pmt
•          numpy.ppmt
•          numpy.ipmt
•          numpy.irr
•          numpy.mirr
•          numpy.nper
•          numpy.rate
•    Functional programming
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• NumPy Distutils - Users Guide
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numpy.ppmt(rate, per, nper, pv, fv=0, when='end')[source]¶

Compute the payment against loan principal.

Deprecated since version 1.18: ppmt is deprecated; for details, see NEP 32 [1]. Use the corresponding function in the numpy-financial library, https://pypi.org/project/numpy-financial.

Parameters

ratearray_like

Rate of interest (per period)

perarray_like, int

Amount paid against the loan changes. The per is the period of interest.

nperarray_like

Number of compounding periods

pvarray_like

Present value

fvarray_like, optional

Future value

when{{‘begin’, 1}, {‘end’, 0}}, {string, int}

When payments are due (‘begin’ (1) or ‘end’ (0))

See also

pmt, pv, ipmt

References

1

NumPy Enhancement Proposal (NEP) 32, https://numpy.org/neps/nep-0032-remove-financial-functions.html