The Less atan function is used to specify inverse of a tangent also known as arctangent, of a specified number.
Atan Function Example
Let's take an example to demonstrate the usage of atan function in Less file.
Create a Less file named "simple.less", having the following code:
Less file: simple.less
Now open the node.js command prompt and execute the following code: lessc simple.less simple.css
This will compile the "simple.less" file. A CSS file named "simple.css" will be generated.
The generated CSS "simple.css", has the following code:
Here, you can see that the font having atan-math function is produced the arctangent value of a number.