Euler Identity in Home

[Manolo Sobrino]

(04-17-2014 10:39 PM)Matt Agajanian Wrote:  I'm just throwing this out there but, are you saying the calculator has become a moot tool?

Not exactly, but now that you're asking... I use them for exploring things and personal calculations, they're great for this, and for some exam akin to FE that I'm pondering. But for real work? you had to be out of your mind.

Save for specialised user cases, surveyors or I don't know, pilots, machinists? and maybe a few more, you can't publish things done with a calculator if you want to be taken seriously. It's been a long time since there's much better software out there, better as in standard, reproducible, more accurate and quite often more learned (Excel? not really. It's actually pretty good for many other things, though). And if there's not, you're expected to create it using a good compiler. This is 2014 and people have access to computers.

Keep them for blueprints, but then you have to calculate your final numbers with the real toolchain.

(edit)

Han, that's really a cheap fallacy . What happens there is that the calculator runs out of digit positions to display (all of them have this limitation). It's not telling you that it is divisible by 4, it's just the most accurate result it can show you if you divide by 4. If you want to know if it's divisible by 4, call function mod(result#1, 4) or mod(5^whatever, 4), the answer is, of course, 1... That will break at some point too .