Hmm… BLAS started life as Fortran codes (said intentionally to sound like a native Fortean-er).

Saying BLAS is a C library skips over much of the depth and history of its FORTRAN roots. The work that went into achieving numeric stability of this stuff is astounding. Ditto with LAPACK.

https://en.m.wikipedia.org/wiki/Basic_Linear_Algebra_Subprog...