# pi

### Ratio of circle's circumference to its diameter.

### Syntax

### Description

**pi** eturns the floating-point number nearest the value of **π **.

### Examples

```
cos(pi)
```

```
sin(pi)
```

```
4*atan(1) == pi
```

### See also

cos, sin, atan.

### History

Version |
Description |

1.0.0 |
initial version |

### Author

Allan CORNET