does not exist, <code>delete</code> is a no-op.
</p>


<h3 id="Complex_numbers">Manipulating complex numbers</h3>

<p>
Three functions assemble and disassemble complex numbers.
The built-in function <code>complex</code> constructs a complex
value from a floating-point real and imaginary part, while
<code>real</code> and <code>imag</code>

shore.



                           CHAPTER III

                  A Caucus-Race and a Long Tale


  They were indeed a queer-looking party that assembled on the
bank--the birds with draggled feathers, the animals with their
fur clinging close to them, and all dripping wet, cross, and
uncomfortable.

  The first question of course was, how to get dry again:  they