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SUBTRACT dobj1 FROM dobj2.
This statement has the same effect as the statement
The content of dobj1 is subtracted from the content of dobj2 and the result is assigned to dobj2. The data objects dobj1 and dobj2 have to be numeric. Only data objects can be specified, no calls or other expressions. The calculation type is determined like an arithmetic expression.
One obsolete form of the statement SUBTRACT is SUBTRACT-CORRESPONDING.