At 02:02 PM 3/10/2012, cdb wrote: > I saw this on an RISCOS enthusiast website. > >Using, head, as many different calculators that you have to hand >(especially if you have an iPhone or Windows calc) what result do you get >from the following sum. > >6/2(1+2) > >Type it in exactly as above. My HP calculators are RPN, so they come up with the same answer that=20 I got by doing it in my head: 1 Same with my PC-based calculators - they are all also RPN. That's based on doing: 6 [Enter] 2 [Enter] 1 [Enter] 2 [Enter] [plus]=20 [multiply] [divide]. However, it seems logical that one could also get an answer of 9, by=20 using the logic that multiply and divide operations are supposed to=20 be position-independent. By that, I mean that it shouldn't matter in=20 which order one does multiply or divide functions. Regardless, I fall upon the old mnemonic phrase for order of math=20 operations that my Maths teacher gave to me way back in grade school:=20 BOMDAS =3D Brackets, then Odd_Functions, then Multiply, then Divide,=20 then Add, then Subtract. My cellphone calculator doesn't have brackets (its a dumb phone). dwayne --=20 Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax www.trinity-electronics.com Custom Electronics Design and Manufacturing --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .