Function na::linalg::wilkinson_shift [−][src]
pub fn wilkinson_shift<N>(tmm: N, tnn: N, tmn: N) -> N where
N: ComplexField,
Computes the wilkinson shift, i.e., the 2x2 symmetric matrix eigenvalue to its tailing
component tnn
.
The inputs are interpreted as the 2x2 matrix: tmm tmn tmn tnn