I tried it in Realcalc on Android in RPN mode using the same method as Dwayne and got ZERO as the result, switching to Algebraic mode it gives 9. Now I have lost faith in my favorite calculator, I get the wrong answer either way. On 11 March 2012 01:26, cdb wrote: > Windows Calc informs me that the answer is 2, which is definitely > unexpected. > > My mobile (Android) gives a different answer to my Casio. The phone gives > the same answer as an Acorn Archimedes running BBC Basic. > > Colin > -- > cdb, colin@btech-online.co.uk on 11/03/2012 > > Web presence: www.btech-online.co.uk > > Hosted by: www.justhost.com.au > > > This email is to be considered private if addressed to a named individua= l > or Personnel Department, and public if addressed to a blog, forum or new= s > article. > > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .