What is x/y/0 ?
1 Answer
Explanation:
When dealing with arithmetic of ordinary numbers, division by
So both
There are at least two non-ordinary contexts in which it may be defined.
They are called the "real projective line"
Both of these extensions of ordinary numbers add a single point "at infinity"
For example:
For any
#x+oo = oo+x = oo#
For any non-zero
#x/oo = 0#
#x/0 = oo#
The following expressions are all indeterminate:
#0/0#
#oo/oo#
#oo-oo#
#0*oo#
However, we do find that if
#x/(y/0) = x/oo = 0#