This has been bugging me for a few days now. Usually when I have a question about math I can answer it myself, but this, the answer is evading me. I know that the answer to the negitive square root of 100 is .1. How is this number obtained? Is there a graphical representation? Does the number have a deeper meaning? The main reason that I can't find that answer to this is because how can you have negitive 2 numbers? x^-2? I know that this is correct and I get that. But I just don't know how the .1 is obtained.