[−][src]Function xapphire::prelude::solve_cg_precond
pub fn solve_cg_precond(
a: &Array<f64, Ix2>,
b: &Array<f64, Ix1>,
x0: &Array<f64, Ix1>,
precond: &Array<f64, Ix2>,
eps: f64,
iter_max: usize
) -> Result<(Array<f64, Ix1>, usize, f64), &'static str>