Function rgsl::polynomials::evaluation::poly_eval_derivs

pub fn poly_eval_derivs(c: &[f64], x: f64, res: &mut [f64]) -> Value

This function evaluates a polynomial and its derivatives storing the results in the array res of size lenres. The output array contains the values of d^k P/d x^k for the specified value of x starting with k = 0.