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bundles / scipy 1.17.1 / scipy / optimize / _zeros_py / _inverse_poly_zero

function

scipy.optimize._zeros_py:_inverse_poly_zero

source: /scipy/optimize/_zeros_py.py :1077

Signature

def   _inverse_poly_zero ( a b c d fa fb fc fd )

Summary

Inverse cubic interpolation f-values -> x-values

Extended Summary

Given four points (fa, a), (fb, b), (fc, c), (fd, d) with fa, fb, fc, fd all distinct, find poly IP(y) through the 4 points and compute x=IP(0).

Aliases

  • scipy.optimize._zeros_py._inverse_poly_zero