BLAS Level 2 TRSV (triangular solve) for ndarrays
Calculate x <- A^-1 x
for the upper triangular matrix A using back-substitution. Data below the diagonal is ignored. If uplo
is 'lo', uses the lower triangular portion of A and performs forward-substitution instead. Result overwrites the vector x.
(c) 2015 Ricky Reusser. MIT License