On 11/27/05 12:25 PM, Aron Spencer <aron at r8ix.com> wrote: > Obviously, the problem is that there is no "of" button on the calculator. > > As far as tipping goes, there is an implied "of" as in "of the bill" which is > distinctly different than the OP's notation of "+". And there used to be an implied "of" in the Calculator as well, as by pressing the % key, it would produce the percent "of" the previously entered number. Pressing the = key performs the +