这是说 cross product （即叉乘，或向量积） axb 还是向量，它的方向依 right hand rule（右手准则）确定，即用右手的中指、食指和拇指分别表示a，b 和 axb，它们作成一个正交标架。
Learn about the cross product & the right-hand rule in vector multiplication. See how to calculate the magnitude of the cross product & examples of right hand rule. Updated: 11/21/2023 Table of Contents What is a Vector? Cross Product Formula Right-Hand Rule Cross Product Applications ...
right hand rule：右手四指先沿着第一个矢量a，向第二个矢量弯曲，大拇指的方向就是cross product的方向
2. Algebraic Properties of the Cross Product u×v is orthogonal to both u and v . |u×v|=|u||v|sinθ . right hand side rule u\times v is perpendicular to u and v . The length of u\times v is |u\times v|=|u||v|sin\theta . The direction is given by the right hand sid...
Learn how to find the cross product or vector product of two vectors using right-hand rule and matrix form. Also, get the definition, formulas, properties and example of vector product at BYJU’S.
用右手从a的方向握向b的方向，那么大拇指所指的方向即为叉积的方向，你可以想象一下直角坐标系的x、y、z轴，从x握向y，大拇指方向为z，图解参考下图
c=axb,c垂直于a,b确定的平面。右手系： 右手握拳竖起大拇指， 右手四个手指是从 a 到 b 的旋转方向（旋转角度最小<=180度），大拇指方向则为 c 的方向。
Given two linearly independent vectors u and ν in three dimensions, their cross product is the vector u ×ν, perpendicular to the plane of u and v and oriented according to the right-hand rule. There is a way to look at the cross product that is more instructive than the standard ...
xaxb+yayb+zazb=AC⋅BCcosθ 离矢量也就是一步之遥 设a→⋅b→=xaxb+yayb+zazb=|a||b|cosθ dot product,可以快速判断θ是否为直角,当a→⋅b→=0时 下面是见证时刻的奇迹 已知一个矢量a→,比如(1,2)或(3,4,5),想要找到与这个矢量垂直的线(二维)或面(三维)方程,根据余弦定理 ...
Perpendicular Vectors and the Right-Hand Rule In the description of the cross product, it is stated that the direction of the cross product is perpendicular to the plane spanned by vector a and vector b. But this leaves two possibilities: It might point out of t...