And still with unit lengths. You often think of these as the rotation matrices.
还是单位长度 你通常认为这些是旋转矩阵。
Rotation matrix
原声例句
Linear algebra
Linear algebra
You might be tempted to just translate the columns of our rotation matrix into jennifer's language, but that's not quite right.
你可能会想把旋转矩阵的列转换成jennifer的语言 但这并不完全正确。
中文百科
旋转矩阵
旋转矩阵（英语：Rotation matrix）是在乘以一个矢量的时候有改变矢量的方向但不改变大小的效果并保持了手性的矩阵。旋转矩阵不包括点反演，点反演可以改变手性，也就是把右手坐标系改变成左手坐标系或反之。所有旋转加上反演形成了正交矩阵的集合。旋转可分为主动旋转与被动旋转。主动旋转是指将矢量逆时针围绕旋转轴所做出的旋转。被动旋转是对坐标轴本身进行的逆时针旋转，它相当于主动旋转的逆操作。
英语百科
Rotation matrix 旋转矩阵
In linear algebra, a rotation matrix is a matrix that is used to perform a rotation in Euclidean space. For example the matrix
rotates points in the xy-Cartesian plane counter-clockwise through an angle θ about the origin of the Cartesian coordinate system. To perform the rotation using a rotation matrix R, the position of each point must be represented by a column vector v, containing the coordinates of the point. A rotated vector is obtained by using the matrix multiplication Rv.
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