Returns the cosine of the given angle.
Syntax
COS(number)
Number is the angle in radians for which you want the cosine.
Remark
If the angle is in degrees, multiply it by PI()/180 or use the COS function to convert it to radians.
Example
The example may be easier to understand if you copy it to a blank spreadsheet.
How?- Create a blank spreadsheet.
- Select the example in the Help topic.
Selecting an example from Help
- Press CTRL+C.
- In the spreadsheet, select cell A1, and press CTRL+V.
- To switch between viewing the formula that returns the result and the result in the cell, select the cell and press F2 and then ENTER, or click Commands and Options on the spreadsheet toolbar, click the Formula tab, and look in the Formula in active cell (active cell) box.
| Formula | Description (Result) |
|---|---|
| =COS(1.047) | Cosine of 1.047 radians (0.500171) |
| =COS(60*PI()/180) | Cosine of 60 degrees (0.5) |
| =COS(RADIANS(60)) | Cosine of 60 degrees (0.5) |