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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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## 9 Replies

Toga_Dan (author)2017-12-17

Programmable calculator? Got \$160 lying around?

Toga_Dan (author)2017-12-17

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.

Yonatan24 (author)2017-12-16

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

blind oly (author)2017-12-15

Still hoping this is possible if anyone wants to help?

Downunder35m (author)2017-12-15

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.

blind oly (author)2017-12-04

I was hoping it would be possible (and not too difficult) to reprogramme any normal calc brough from a shop. Wanna give one to a math 'geek' friend.

If anyone can advise on this, cool.

blind oly (author)2017-12-04

Thought I deleted the first post after seeing the wanted forum.

Anyone else wish to reply with something more productive for my 'nonsense needs'?

Downunder35m (author)2017-12-04

You could program your own to run on Android or IOS...

Downunder35m (author)2017-12-03

There is neither a need for nonsense calculators nor to post the same nonsense twice.
I mean: Why not just ask for a lightbulb that draws light in instead of emitting it....
Sorry but getting fed up by newbies constantly crewating double postings and never hearing from them again....