Whenever a table name is used in an operation other than LOOKUP, the table name actually refers to the data retrieved by the last successful search. Therefore, when the table name is specified in this fashion, elements from a table can be used in calculation operations.
If the table is used as factor 1 in a LOOKUP operation, the current element is used as the search argument. In this way an element from a table can itself become a search argument.
The table can also be used as the result field in operations other than the LOOKUP operation. In this case the value of the current element is changed by the calculation specification. In this way the contents of the table can be modified by calculation operations (see Figure 83).
*...1....+....2....+....3....+....4....+....5....+....6....+....7...
CL0N01Factor1+++++++Opcode(E)+Factor2+++++++Result++++++++Len++D+HiLoEq..
C ARGMNT LOOKUP TABLEA 20
C* If element is found multiply by 1.5
C* If the contents of the entire table before the MULT operation
C* were 1323.5, -7.8, and 113.4 and the value of ARGMNT is -7.8,
C* then the second element is the current element.
C* After the MULT operation, the entire table now has the
C* following value: 1323.5, -11.7, and 113.4.
C* Note that only the second element has changed since that was
C* the current element, set by the LOOKUP.
C IF *IN20
C TABLEA MULT 1.5 TABLEA
C ENDIF