yaw() doesnt use radians
It is a function that converts the magnitude of your mouse movement into a direction for your player to turn. I have found that it is an exponential scale, and doing yaw(100); three times is not equal to doing yaw(300);
$mvyaw just uses a radian input between pi and negative pi
I do not know alot of default game functions, so I use %rad = %deg * (3.14159265/180);