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   9 <title>section 1.3: The For Statement</title>
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  15 <H2>section 1.3: The For Statement</H2>
  16
  17 pages 13-14
  18 <p>Deep sentence:
  19 <blockquote>...in any context where it is
  20 permissible to use the value of a variable of some type,
  21 you can use a more complicated expression of that type.
  22 </blockquote>You may have used other languages which placed restrictions on
  23 where you could use expressions or how complicated they could be.
  24 C has relatively few such restrictions.
  25 There's nothing magical about the <TT>printf</TT> call above;
  26 this ability to perform a computation inside of an argument is
  27 not unique to <TT>printf</TT>.
  28 In any function call,
  29 the arguments in the argument list are expressions,
  30 and it doesn't matter if they are simple expressions which just
  31 fetch the value of one variable, like <TT>fahr</TT>, or more
  32 complicated expressions, like <TT>5.0/9.0 * (fahr - 32)</TT>.
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