Syntax
where C is an alphabetic character representing an index, and
are equations.
The syntax for the INDEX: command is similar to the
syntax for the FOR: command, except that the arguments
must be non-negative and the index C is a single alphabetic
character. The command is used to vary the indices of quantities
referenced in COBUILD: and ITADJUST: commands. An index
can be overwritten - if an error occurs during re-definition, the
former value is retained. The values used for indices should round to
positive integers no larger than 32767.
Index definitions can be deleted with the
XINDEX: command.