Program:      AID

Purpose:      Selects one of the tasks SUB, MUL, ADD, or DIV 

Category:     COMBINATION

File:         aid.shl

Author:       M. Vogelaar

Keywords:

    TASK=     Select task: SUB/MUL/ADD/DIV:                       [SUB]

Description:  The programs ADD, SUB, MUL, and DIV perform the respective 
              arithmetic operations of addition, subtraction, multipli-
              cation, and division. The first operand is a series of 
              subsets and the second operand is one subset or another
              series of subsets. The programs are similar in structure. 
              They start with requesting an input set and a series of 
              subsets (INSET=). Then, a frame can be given for which 
              the operation applies to the input subsets (BOX=). Next, 
              the second operand is asked for (SETX=). If needed, the 
              specification of a frame is requested (BOXX=). Furthermore,
              an output set is requested (OUTSET=).

              To start one of these programs, give the appropriate 
              program name. 

Remarks:      To get corresponding help info in Xhermes, select one 
              of the tasks SUB, MUL, ADD, or DIV instead of AID.
              

Updates:      Feb 22, 1990: MV, Document created.