This is documentation for an old release of NumPy (version 1.14). Read this page in the documentation of the latest stable release (version 2.2).
numpy.ppmt¶
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numpy.ppmt(rate, per, nper, pv, fv=0, when='end')[source]¶ Compute the payment against loan principal.
Parameters: rate : array_like
Rate of interest (per period)
per : array_like, int
Amount paid against the loan changes. The per is the period of interest.
nper : array_like
Number of compounding periods
pv : array_like
Present value
fv : array_like, optional
Future value
when : {{‘begin’, 1}, {‘end’, 0}}, {string, int}
When payments are due (‘begin’ (1) or ‘end’ (0))