LET /SEXAGESIMAL

        [SIC\]LET  Numeric  [=]  [+|-]DD[:MM[:SS.SS]]  /SEXAGESIMAL  [D|H|R]
    [D|H]
        [SIC\]LET String [=] Value /SEXAGESIMAL [D|H] [D|H|R]

    The /SEXAGESIMAL option allows to use sexagesimal expressions in assign-
    ments.  This option is only valid for scalar variables. Units of the op-
    erands can be provided by optional characters chosen in D)egrees, H)ours
    or  R)adian. The first unit is for the output, the second for the input.
    Radian is an invalid unit for the sexagesimal string.  Degrees  are  as-
    sumed by default for both operands.

    The first form converts the sexagesimal expression into a numerical val-
    ue stored in the assigned variable. Mathematical expressions can be used
    for each elements, provided they are separated by a semicolon.

    The second form converts a numerical value into the sexagesimal notation
    stored in the assigned character variable.