[nabaraz]

Re: (10^100)+1-(10^100)

i) Answer is 0 if you cancel out two expression (10^100)

ii) Answer is 1 if you compute 10^100 and then add 1 which is insignificant.

How do you even cater for these scenarios? This needs more than arithmetic.

[Sharlin]

Uh, what do you mean? The answer is very obviously 1 no matter what.

[nabaraz]

Obviously it is 1.

But try it on iOS calculator, answer is 0.

Reason is when computing large numbers e.g. 100000........n + 1 - 100000........n, addition of 1 is pretty in-significant.

[fsckboy]

>The answer is very obviously 1 no matter what

no, because only in our imaginations and in no place in the universe can we ignore significance of measurements. If we are sending a spaceship to an interstellar object 1 light year away from earth, and the spaceship is currently 25 miles from earth (on the way), you are insisting that you know more about the distance from earth to the object than you do if you think that that distance from the spaceship to the galaxy is 587862819274.1 miles