[−][src]Function bacon_sci::special::chebyshev
pub fn chebyshev<N: ComplexField>(
n: u32,
tol: N::RealField
) -> Result<Polynomial<N>, String>
Get the nth chebyshev polynomial.
Gets the nth chebyshev polynomial over a specified field. This is done using the recursive formula and is properly normalized.
Examples
use bacon_sci::special::chebyshev; fn example() { let t_3 = chebyshev::<f64>(3, 1e-8).unwrap(); assert_eq!(t_3.order(), 3); assert!(t_3.get_coefficient(0).abs() < 0.00001); assert!((t_3.get_coefficient(1) + 3.0).abs() < 0.00001); assert!(t_3.get_coefficient(2).abs() < 0.00001); assert!((t_3.get_coefficient(3) - 4.0).abs() < 0.00001); }