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空间向量的柱坐标式

Floor 1 巨大八爪鱼 12/17/14 23:41
xvec A + hvec(0, 90°)
或简写为
xcyd(A, h)
为空间向量的柱坐标式。
其中x为该向量投影到xOy平面的长度,h为该向量投影到竖坐标轴上的长度。A为x坐标轴正方向与该向量的xOy平面上的投影的夹角(任意角)。
Floor 2 巨大八爪鱼 12/17/14 23:43
请注意cyd(45°, 1)≠vec(45°, 45°)

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