# graphic\_math.h ## **Overview** **Related Modules:** [Graphic](Graphic.md) **Description:** Defines mathematical operation functions and types, including trigonometric functions, two-dimensional vectors, three-dimensional vectors, and matrices. **Since:** 1.0 **Version:** 1.0 ## **Summary** ## Data Structures

Data Structure Name	Description
OHOS::Vector2< T >	Defines the two-dimensional vector, and provides basic mathematical operations such as vector assignment, scalar product, cross product, addition, and subtraction.
OHOS::Vector3< T >	Defines the 3-dimensional vector, and provides basic operators such as [] and ==.
OHOS::Matrix3< T >	Defines a 3 x 3 matrix.

## Macros

Macro Name and Value	Description
MATH_MAX(a, b) ((a) > (b) ? (a) : (b))	Larger of a and b.
MATH_MIN(a, b) ((a) < (b) ? (a) : (b))	Smaller of a and b.
MATH_ABS(x) ((x) > 0 ? (x) : (-(x)))	Absolute value of x.
MATH_MINUS(a, b) ((a) < (b) ? ((b) - (a)) : ((a) - (b)))	Difference between a and b.