# numeric.aCos()

Returns the angle whose cosine is the value passed as the argument.

```
numeric.aCos( )
```

**Returns:** number

*This function does not take any arguments.*

# Examples

```cfml
    numeric= 0.5;
    writeDump(numeric.aCos());

```

# Categories

[Numbers](../../../categories/number.md), [Math](../../../categories/math.md)

# See Also

[ACos()](../../functions/acos.md), [numeric](../numeric.md)