(3.4 + 1.0) - 2.8 42.0 / 1.3 31.0 / 3.0 neq 42.0 - 2.0 foo = 41.0 + 1.0 foo = foo / 2.0 ; let's write it out do(write, foo) bar = [42.0, 3, 1] baz = bar + foo do(write, bar) do(write, baz)