 Quandaries and Queries My name is Greta, and I am a 7th grader and my test is coming up.  The question I would like to ask you is why 0 elevated to 0 is unidentified. Hi Greta, Mathematicians try to use notation that somehow makes sense. In this case of trying to decide what 00 "should mean", we compare it to other uses of the exponent. a0 = 1 as long as a is positive, so maybe 00 "should be" 1. 0b = 0 for any ono-zero b, so maybe 00 "should be" 0. Lets try ab where a and b are very close to zero, but not zero. This is a calculator exercise. 0.10.1 = 0.794328 0.010.01 = 0.954993 0.0010.001 = 0.993116 0.00010.0001 = 0.999079 So if a = b and they are both close to zero it looks like 00 "should be" 1. (1/2)1 = 1/2 (1/4)1/2 = 1/2 (1/8)1/3 = 1/2 (1/16)1/4 = 1/2 (1/32)1/5 = 1/2 This time it looks like 00 "should be" 1/2. It is this confusion that is the problem. There is no value that I would say 00 "should be" this value. The way out of this confusion is just to say that 00 doesn't have a value, that is, it is undefined. Penny Go to Math Central