docs: update math API docs
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# Matrix4::Scale
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# Matrix4x4::Scale
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```cpp
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static Matrix4 Scale(const Vector3& v)
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static Matrix4x4 Scale(const Vector3& v)
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```
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创建缩放矩阵。
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创建缩放矩阵。用于沿各轴方向对点或向量进行缩放变换。
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**参数:**
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- `v` - 各轴缩放因子
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- `v` - 缩放向量,指定 x、y、z 方向上的缩放因子
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**返回:** `Matrix4` - 缩放矩阵
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**返回:** 缩放矩阵
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**线程安全:** ✅
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**复杂度:** O(1)
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**示例:**
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```cpp
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Matrix4 scale = Matrix4::Scale(Vector3(2.0f, 2.0f, 2.0f));
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#include "XCEngine/Math/Matrix4.h"
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#include "XCEngine/Math/Vector3.h"
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using namespace XCEngine::Math;
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Matrix4 scale = Matrix4::Scale(Vector3(2.0f, 0.5f, 1.0f));
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Vector3 point(2.0f, 4.0f, 2.0f);
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Vector3 scaled = scale.MultiplyVector(point);
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// scaled = (4.0f, 2.0f, 2.0f)
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```
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## 相关文档
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- [Matrix4](matrix4.md) - 返回类总览
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- [TRS](trs.md) - 组合变换矩阵
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