SIC SYNTAX

        [SIC\]SIC SYNTAX [FIXED|FREE]

    control the syntax for mathematic operations. In FIXED syntax,  the  LET
    command is compulsory. In FREE syntax, commands lines like
           A[I,J] = SIN((2*I+J)/PI)
    where A is a known variable, are recognized as assignement and automati-
    cally expanded to the equivalent FIXED syntax
           LET A[I,J] SIN((2*I+J)/PI)
    Free syntax cannot be used for the LET /WHERE command. See  HELP SYNTAX\
    for details.