BLAS Level 2 operations for ndarrays
npm install ndarray-blas-level2  
BLAS Level 2 operations for ndarrays
This library implements the basic matrix-vector operations of the Level 2 Basic Linear Algebra Subprograms (BLAS).
Note: It's possible to accomplish the lower triangular functions with the upper triangular version plus flipping and unflipping dimensions, but that's a little convoluted. Instead, the lower triangular versions are suffixed with \_lower just to keep it really simple.
y <- alphaAx + beta*yx <- A*x for the upper triangular matrix A. Data below the diagonal is ignored. If isLower is true, uses the lower triangular portion of A instead.x <- A^-1 x for the upper triangular matrix A. Data below the diagonal is ignored. If isLower is true, uses the lower triangular portion of A instead.y <- alphaAx + beta*y for banded matrices. kl is the number of subdiagonals and ku are the number of super diagonals. alpha defaults to 1.0 and beta defaults to 0.0 if not specified.y <- alphaAx + beta*y for symmetric matrices. If fromLower = true, the function uses the lower triangular part of the matrix; for false it uses the upper triangular part. alpha defaults to 1.0 and beta defaults to 0.0 if not specified.