Function lattice_qcd_rs::su3::extract_su2_unorm

pub fn extract_su2_unorm(m: CMatrix3) -> [CMatrix2; 3]

Get the three unormalize sub SU(2) matrix of the given SU(3) matrix, ordered r, s, t see get_sub_block_r, get_sub_block_s and get_sub_block_t