Subroutine interface

This section introduces all the subroutines in the CAT library, with the subroutines arranged by function. For each subroutine the calling sequence and a brief description is given. Standard names are used for the calling arguments. A complete description of each subroutine is given in Appendix . Following normal Starlink practice the subroutine arguments are arranged in the order:

given,
given and returned,
returned,
global (or running) status.

A semi-colon (`;') is used to separate these various categories in the calling sequences given in this section.