cubic_spline#

module wntr.utils.polynomial_interpolation

cubic_spline(x1, x2, f1, f2, df1, df2)[source]#

Method to compute the coefficients of a smoothing polynomial.

Parameters:

  • x1 (float) – point on the x-axis at which the smoothing polynomial begins

  • x2 (float) – point on the x-axis at which the smoothing polynomial ens

  • f1 (float) – function evaluated at x1

  • f2 (float) – function evaluated at x2

  • df1 (float) – derivative evaluated at x1

  • df2 (float) – derivative evaluated at x2

Return type:

A tuple with the smoothing polynomail coefficients starting with the cubic term.