Can a human do what a computer cannot? For example dividing by zero. Please Register or Log in to view the hidden image!

If you try to get a computer to divide by zero, you usually get this message on the screen: "Congratulations, you are the 1100111th customer to attempt division by zero! This computer will now self destruct as a token of our sincerity."

I agree sideshowbob. A computer equates infinity: it hangs. This is why computers are programmed with an error message displaying the computer cannot compute such a calculation. Please Register or Log in to view the hidden image! However I would argue: (((x+1)/(0+1))-1)=x exactly the same as: +0 *0 -0 Zero does not exist. There is nothing there to calculate with...

In a BBC english TV program called QI (recommend viewing) the panel was asked ' Is zero a odd or even number? ' The answer is given as ' even ' Because it lies between two ones -1 and 1 Go figure Please Register or Log in to view the hidden image!

That's the answer I would have given. It's also even because it leaves no remainder when divided by 2.

...but what of +0 or -0 They exist! For example 1+0, 1-0. Please Register or Log in to view the hidden image!

Do they? + and - designate on which side of 0 a number is found. 0 is not found on either side, so it would seem that +0 and -0 are undefined. In the expressions 1+0 and 1-0, the + and - are operators, not signs.