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# How to make a calculator that divides by zero? Answered

Hi
New to the forum so not sure how it works here but basically asking a request for a instructable for any shop brought calculator that when asked to divide something by zero returns a number, maybe a  random number, but hopefully 42 everytime. Is this possible and if so could someone post the instructable?
Cheers

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## Discussions

Programmable calculator? Got \$160 lying around?

0.99999 repeating is understood to equal 1.

I remember at one time thinking that

1/0 should equal infinity. but NO. It doesn't.

But what if 0 is defined as

0.0000(repeating infinitely) followed by...001

Then 1/0 (as we have defined "0" will = infinity.

You can draw the division symbol on the screen with a whiteboard marker...

Still hoping this is possible if anyone wants to help?

Zaphod Beeblebrox will certainly have one or two to spare but you might have to drink a few pan galactic gargle blasters with him...
If you have the time to read in the arduino playground then of course you could use a keypad, display and an arduino to create your own calculator.
Apart from the normal functions just add an extra call for a devicsion by zero to show whatever you want.