EISPACK 3 and BLAS 2 & 3
Machine independence for EISPACK
Reduce the possibility of overflow and underflow.
Mods to the Algol from S. Hammarling
Rewrite reductions to tridiagonal form to involve sequential access to memory
“Official” Double Precision version
Inverse iteration routines modified to reduce the size for reorthogonalization.
BLAS (Level 1) vector operations provide for too much data movement.
Community effort to define extensions
- Matrix-vector ops
- Matrix-matrix ops