Page "Basic Linear Algebra Subprograms" Paragraph 15

; Eigen BLAS: A Fortran 77 and C BLAS library implemented on top of the open source Eigen library, supporting x86, x86 64, ARM ( NEON ), and PowerPC architectures.

( Note: as of Eigen 3. 0. 3, the BLAS interface is not built by default and the documentation refers to it as " a work in progress which is far to be ready for use ".