[−][src]Function bacon_sci::differentiate::derivative
pub fn derivative<N: ComplexField>(
f: fn(_: N::RealField) -> N,
x: N::RealField,
h: N::RealField
) -> N
Numerically find the derivative of a function at a point.
Given a function of a real field to a complex field, an input point x, and a step size h, calculate the derivative of f at x using the five-point method.
Making h too small will lead to round-off error.