# Functions
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GaussJordanElimination 高斯-约旦消元法求解线性方程组 Ax = b.
InverseMatrix 计算 3x3 矩阵的逆.
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NewTranslateRotationMat transforms a point from coordinate system a2 to a1 在数学和计算机图形学中,旋转角度的正负通常遵循右手定则。默认情况下,顺时针方向被认为是负的,而逆时针方向被认为是正的。 O2相对于O1旋转度数.
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# Constants
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# Structs
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counter clockwise if clockwise ,Start.X,Start.Y <-> endX, endY.
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A Contour is a closed sequence of connected linear or circular segments.
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Point 结构体用于表示一个点.
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PointInt 结构体用于表示一个点.
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A Segment is a stroked line.
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# Type aliases
定义一个2x3的仿射变换矩阵.
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