Function rgsl::linear_algebra::QR_svx

pub fn QR_svx(qr: &MatrixF64, tau: &VectorF64, x: &mut VectorF64) -> Value

This function solves the square system A x = b in-place using the QR decomposition of A held in (QR,tau) which must have been computed previously by gsl_linalg_QR_decomp. On input x should contain the right-hand side b, which is replaced by the solution on output.