BSplineApprox.dot_and_deriv()

BSplineApprox.dot_and_deriv(x, coef)

Evaluate spline and its derivative.

Parameters:

• x (Array) – Input data, an array of shape (n,).

• coef (Array) – Spline coefficients.

Return type:

tuple[Array, Array]

Returns:

• value (Array) – Spline values.

• deriv (Array) – Spline derivatives.