Division by Zero
Division by zero is the operation of taking the quotient of any number x and 0, i.e.,. The uniqueness of division breaks down when dividing by zero, since the productis the same for any y, so y cannot be recovered by inverting the process of multiplication. 0 is the only number with this property and, as a result, division by zero is undefined for real numbers and can produce a fatal condition called a \"division by zero error\" in computer programs.
To the persistent but misguided reader who insists on asking \"What happens if I do divide by zero,\" Derbyshire (2004, p. 36) provides the slightly flippant but firm and concise response, \"You can't. It's against the rules.\" Even in fields other than the real numbers, division is never allowed (Derbyshire 2004, p. 266).
There are, however, contexts in which division by zero can be considered as defined. For example, division by zeroforin the extended complex plane C-Star is defined to be a quantity known as complex infinity. This definition expresses the fact that, for,(i.e., complex infinity). However, even though the formal statementis permitted in C-Star, note that this does not mean that. Zero does not have a multiplicative inverse under any circumstances.
Although division by zero is not defined for reals, limits involving division by a real quantity x which approaches zero may in fact be well defined. For example,
Of course, such limits may also approach infinity,
Originally posted by iooqxpooi@Sep 16 2004, 11:36 AM
I've heard that told to me before, just that I didn't believe it. I was thinking of that when I heard that mass needed to be infinity to travel at c. I was thinking of mass/0, and I found that anything divided by 0 is infinity. Sorry if you don't approve or anything. Maybe I shouldn't state these small and useless things on these forums anymore. :-\
lim is limit, it is what a function approaches as you approach a number.Originally posted by iooqxpooi@Sep 16 2004, 10:43 AM
(well not all of it, I don't know what lim is...)