--Copyright The Numerical Algorithms Group Limited 1996.
1+1
123^45
2^(3+4)
4/3
2/2
a := 2
b := a
a := 3
b
i : Integer
i := 2/3
i := 4/2
c : PositiveInteger := 3
(j, k, l) : Integer
)display names
)clear properties c i
%%(1)
1 + %%(-3)
1 _
  +_
  2
7 * 8 -- In the next chapter we shall move beyond elementary arithmetic.
-- Commenting alone doesn't increment the command count.
