1. ## Re: km-2

Originally Posted by emsr2d2
So does "kg/cm^2" mean "the number two should be in superscript but we couldn't do it for some reason"? I have not the first idea what "an exponent of negative 2" means, by the way!
Yes. That is how programmers and engineers and such express exponentiation, because we can't type in a superscript into programming languages or when typing simple text messages.

2. ## Re: km-2

You see that every time you add 1 to the exponent, the outcome doubles (exponentiation works like that).
It doubles because you are exponentiating two, not as a general rule.

3^1 = 3
3^2 = 9
3^3 = 27
3^4 = 81

This tendency for values to rise rather quickly is why very rapid growth is called "exponential" in common use of the language.

3. ## Re: km-2

Originally Posted by SoothingDave

It doubles because you are exponentiating two, not as a general rule.
True. In my example it doubled because I was with a base of 2. If you have a base of 3, it triples. The general rule is that adding 1 to the exponent means multiplying the outcome with the base number. I was intentionally keeping it simple for didactic purposes, but you are totally correct.

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