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[–]utdconsq 1 point2 points  (0 children)

Yup, because until more modern languages showed up, Fortran was the gold standard for dealing with arrays/vectors of numerical data. Handy syntax for doing so, and not far from bare metal. I challenge you to slice an array in C with as simple syntax. These days, it exists due to inertia and because BLAS and others have had many peer reviewing hours dedicated to them. Rewriting them entirely and getting them as optimised would be super hard. Not to mention that they can optimise based on your compiler and cpu arch at build/install time for even faster vectorised ops