叉积法求法向量,向量叉乘积公式

如果向量A为{a, b, c}，向量B为{m, n, p}，如何计算向量A与向量B的叉积呢？

用行列式：

             |i    j   k|

             |a   b   c|

             |m  n   p|         

             =(bp-cn)i + (mc-pa)j + (an-bm)k

例如用matlab实现两个向量的叉积：

                                           a = [1 2 3]; 
                                           b = [4 5 6];
                                           c = cross(a,b)

                                           c =  -3     6    -3