公式为 x' = xcosa - ysina, y' = xsina + ycosa;
a的单位为rad,2Πrad = 360°
Vector Rotate(Vector A, double rad){ return Vector(A.x*cos(rad)-A.y*sin(rad), A.x*sin(rad) + A.y*cos(rad));}
公式为 x' = xcosa - ysina, y' = xsina + ycosa;
a的单位为rad,2Πrad = 360°
Vector Rotate(Vector A, double rad){ return Vector(A.x*cos(rad)-A.y*sin(rad), A.x*sin(rad) + A.y*cos(rad));}
本文标题:向量旋转
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