Argument Association

Recall, on the SUBROUTINE slide we had an invocation:

      CALL OutputFigures(NumberSet)

and a declaration,

      SUBROUTINE OutputFigures(Numbers)

NumberSet is an actual argument and is argument associated with the dummy argument Numbers.

For the above call, in OutputFigures the name Numbers is an alias for NumberSet. Likewise, consider,

      PRINT*, F(a,b)

and

      REAL FUNCTION F(x,y)

The actual arguments a and b are associated with the dummy arguments x and y.

If the value of a dummy argument changes then so does the value of the actual argument.

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