RE: Why x*0 = x
December 14, 2015 at 7:04 am
(This post was last modified: December 14, 2015 at 7:05 am by Edwardo Piet.)
Another way of looking at it:
Anything zero times=0
But any non-zero number that isn't multiplied by anything at all (as opposed to multiplying it by zero) is the original non-zero number of course, and not the number zero... because you've done nothing with it.
Mentioning "zero" is not the same as using the number zero in the sum.
The whole thing is simply a Use-Mention Error.
https://en.wikipedia.org/wiki/Use%E2%80%...istinction
Anything zero times=0
But any non-zero number that isn't multiplied by anything at all (as opposed to multiplying it by zero) is the original non-zero number of course, and not the number zero... because you've done nothing with it.
Mentioning "zero" is not the same as using the number zero in the sum.
The whole thing is simply a Use-Mention Error.
https://en.wikipedia.org/wiki/Use%E2%80%...istinction
