Calculations should be reliable, even Apple programmers use these tools! Maybe thats why Yosemite is so buggy& LOL. You can copy and paste from there. A10 12 1010 . There is no built-in programmer calculator on iOS, however, so youll need to stay on the Mac for that. Name (required) Mail (will not be published) (required) Website . It thinks that 2.7936/4.2e17 = 0 Even when you max out decimal points at 15. 8 8 10 1000 . Reply . There is a setting for that somewhere, but I cant find it right now& Reply Phred says: June 14, 2015 at 10:32 pm Fantastic! That was something I needed. Insane, huh? Reply Bob says: June 16, 2015 at 1:32 pm Hmmm& on mine (Yosemite), Show Paper Tape is selected from the Window menu& or toggled on/off via command t.