LET /NEW

        [SIC\]LET Variable [=] Expression /NEW Type [Attr]

    Define the variable and assign it at the same time. Type is the type  of
    the  variable  (REAL, INTEGER, DOUBLE for double precision, or LOGICAL).
    The Attr argument is used to specify whether the newly created  variable
    is LOCAL (default) or GLOBAL. See also the SIC\DEFINE command.