B.2. The Function

The second format can be broken down into four components:

• The opening parenthesis
• The name of a function
• The argument list (what the function acts on)
• The closing parenthesis

Take a familar function, the sin of x. Forcing it into the above format, sin(x) becomes:

(SIN x)

Or a less familiar function (but one you'll use far more often):

(LENGTH-OF all4312)

Try them!