Advanced BASIC

This document is a technical manual for the Advanced BASIC language on the PDP-10, first published in 1968. It covers fundamental concepts such as loops, lists, tables, and formulas, as well as advanced topics including matrix computations, alphanumeric string handling, subroutines (GOSUB/RETURN), and input/output control. It also includes comprehensive sections on debugging, error messages, system control commands for running and saving programs, and appendices summarizing the language's statements and functions.