3. Assignment Statements

Arithmetic operators: multiply, divide, add, subtract:  *  /  +  -

Add one, subtract one:  ++  --

Also mod, for integers only:  %  (remainder after division, e.g. (7 % 4) == 3)

Store result of expression at storage location specified by identifier:

  identifier = expression;              a = b+c*d;  a = (b+c)*d;

Also: *=  /=  +=  -=  %=                a += 5; /* add 5 to a */

examples

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Nested form for polynomial evaluation (Horner's Rule),
to minimize number of multiplications:

  Math:  p = a x3 + b x2 + c x + d

     C:  p = a*x*x*x + b*x*x + c*x + d;

         p = (a*x*x + b*x + c)*x + d;

         p = ((a*x + b)*x + c)*x + d;

nth degree poly, n multiplications

Practice!