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### Powers

```
Date: 10/7/96 at 4:34:52
From: Daniel Johansson
Subject: Number to a Power

Hello!

What do you call it when you have a number raised to a number, like...

3
2

Daniel Johansson
```

```
Date: 10/17/96 at 11:36:10
From: Doctor Jack
Subject: Re: Number to a Power

You have asked a really interesting question.  The name for the
example

3
2

would be read as "2 to the power 3", and more generally, the
expression

y
x

would be read as "x to the power y".

If y is a whole number like 3, then calculating x to the power y is
done by multiplying x by itself y times.

The power function calculation gets more interesting if y is not a
whole number.  For example

1/3                                           3
w = 2     is defined to be the number satisfying  w  = 2.

Using a calculator, you will find that w is approximately  1.25992.

-Doctor Jack,  The Math Forum
Check out our web site!  http://mathforum.org/dr.math/
```
Associated Topics:
Middle School Exponents

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