Unity’s Mathf class provides a collection of common math functions, including trigonometric, logarithmic, and other functions commonly required in Unity projects. It’s a Unity-specific alternative to the .NET System.MathF class.
The following sections cover some of the key features of the Mathf class. For a full reference of every member of the class, refer to the Mathf API reference.
All Unity’s trigonometry functions work in radians:
PI is available as a constant, and you can multiply by the static values Rad2Deg or Deg2Rad to convert between radians and degrees.
The Mathf class includes the following common power and square root functions:
It also provides power-of-two related functions. These are useful when working with common binary data sizes, which are often constrained or optimized to power-of-two values (such as texture dimensions):
The Mathf interpolation functions allow you to calculate a value somewhere between two given points. Each of these functions behaves in a different way, suitable for different situations. For more information, refer to the examples in each method’s API reference:
LerpLerpAngleLerpUnclampedInverseLerpMoveTowardsMoveTowardsAngleSmoothDampSmoothDampAngleSmoothStep
Vector classes and the Quaternion class all have their own interpolation functions (such as Quaternion.Lerp) for interpolating positions, directions, and rotations in multiple dimensions.
The following helper functions are often useful in games or apps and can save time when you need to limit values to a certain range or repeat them within a certain range:
The Log function allows you to calculate the logarithm of a specified number, either the natural logarithm or in a specified base. Additionally the Log10 function returns the base–10 logarithm of the specified number.