[lutusp]

Sure -- Scheme:

Link: http://weber.marblefalls.txed.net/mfhs/academics/electives/c...

Example:

    (+ 5 (* 10 x))

Which more or less means 5 + 10 * x in everyday notation.

Compare to Reverse Polish Notation (used in Hewlett-Packard calculators and elsewhere), which would express the above as:

    10 x * 5 +