# COS

## Syntax

```
COS(numericExpression)
```

## Description

Returns the cosine value of the given argument. Argument must be a numeric expression in radians units. Returned value type is float.

## Examples

```
REM Cosine value
PRINT "Cosine value of a is "; COS(a)
```

## Remarks

- This function is 100% Sinclair BASIC Compatible
- If the given argument type is not float, it will be converted to float before operating with it.