Subroutines in LAPACK have a naming convention which makes the identifiers incredibly compact. This was necessary as the very first Fortran benchmarks only supported identifiers up to six people long, so the names had to be shortened to fit into this limit.[2]: "Naming Scheme" e. it’s present rather than dated. https://damientsnha.nizarblog.com/26852371/a-simple-key-for-slot-lapak77-unveiled