interpolation library

Classes

Len3

Second difference interpolation from a table of 3 equidistant values.

Len5

Fourth difference interpolation from a table of 5 equidistant values.

Functions

lagrange(double x, List<({double x, double y})> table) → double

Lagrange interpolation for unequally-spaced data.

lagrangePoly(List<({double x, double y})> table) → List<double>

Returns interpolating polynomial coefficients using Lagrange's formula.

len4Half(List<double> y) → double

Interpolates a center value from a table of four rows.