Hi pradeep, I think it is normal behaviour for gcalctool. What the parser is intended to do is, process not for expressoin "<NOT> <NUMBER>". The Not button inserts a <NOT> symbol in text, which is then passed to parser with structure similar like "<NUMBER> <NOT>". So, what you need to do is press not button before entering the number.
Hope this helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/996331 Title: Could not able to perform NOT operation in programming calculator To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcalctool/+bug/996331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs