# Recap of Floating Point Numbers

## What We’ve Covered So Far

#### Floating point number variables (also called floats) are used when you need a number with a decimal point in it.

#### Declaring a float variable:

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float moo; // declaring a float variable named foo |

#### Changing a float variable:

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moo = 21.3; |

#### Declaring and assigning a float variable at the same time:

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float moo = 0.955; // declaring a float named moo with a value of zero point nine five five |

**Doing math with a float variable is just like doing regular math with a variable in Algebra.**

**Sometimes float variables create what a rounding error, so use integers whenever you can.**