xblas: xblas (Extra Precise Basic Linear Algebra Subroutines) xblas: xblas: This library of routines is part of a reference implementation for the xblas: Dense and Banded BLAS routines, along with their Extended and Mixed xblas: Precision versions. xblas: xblas: Extended Precision is only used internally; the input and output xblas: arguments remain the same as in the existing BLAS. xblas: xblas: Mixed Precision permits some input/output arguments to be of different xblas: types (mixing real/complex) or precisions (mixing single/double).