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The SUBTRACT Statement

The SUBTRACT statement has the form

       SUBTRACT exp1,exp2;var

and places exp2-exp1 in var. If var is omitted, exp2 must be a variable, and recieves the result of the subtraction.

The comma may be replaced by &'FROM', and the semicolon by &'GIVING'.

Note that SUB is an abbreviation for SUBROUTINE, not SUBTRACT.

Use of a colon instead of a comma interchanges the roles of exp1 and exp2.

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