Subroutines in LAPACK have a naming convention that makes the identifiers extremely compact. This was essential as the very first Fortran criteria only supported identifiers up to 6 figures prolonged, Hence the names needed to be shortened to suit into this limit.[two]: "Naming Plan" e. it’s existing rather than dated. https://lapak7701222.life3dblog.com/26315111/detailed-notes-on-lapak-77