DISP : Displays one or more strings or variables. Expression arguments are
evaluated and the results displayed.
syntax: disp <value>, <value>...
with valid values being one of: "<string>" OR <variable> OR
<expression>
If <value> is an expression, it is evaluated and then displayed. If <value> is
text enclosed within quotes, it is displayed as it is entered. For example,
DISP "THE ANSWER IS: ",5/2
displays: THE ANSWER IS: 2.5