Legacy scientific code is my guess. Fortran isn’t that efficient[0] and many programming languages are preferred[1]. 0: https://states.github.io/files/j2.pdf h

Legacy scientific code is my guess. Fortran isn’t that efficient[0] and many programming languages are preferred[1]. 0: https://states.github.io/files/j2.pdf https://states.github.io/files/j2.pdf 1: https://survey.stackoverflow.co/2023/#section-admired-and-desired-programming-scripting-and-markup-languages https://survey.stackoverflow.co/2023/#section-admired-and-de...