The division operator /.
There is not much to note about /, except that it always rounds down. This has the result that -1/3 and -(1/3) give slightly different answers. (*, however, rounds to the nearest 1/4096, meaning, for instance, PI()/2 and PI()*.5 give different values. Neither has a rounding error per se in the computational rules that apply to evaluating each expression, it is the inconsistency in the choice of which rounding rule to apply that results in the inequality.)