Arbitrary reference number assigned to the resulting variable (2 to NV [NUMVAR]). If this number is the same as for a previously defined variable, the previously defined variable will be overwritten with this result.

Reference number of the variable to be operated on.

Unused fields.

Thirty-two character name identifying the variable on printouts and displays. Embedded blanks are compressed for output.

Unused fields.

Scaling factor applied to variable IA (defaults to 1.0).

Scaling factor (positive or negative) applied to the operation (defaults to 1.0).