Question

矩阵跟向量的乘法怎么计算? 比如说：（0.5,0.3,0.2）* ｛ 0.2 0.7 0.1 0 0 0.4 0.5 0

Answer 1

这道题的算法为（0.5×0.2+0.3×0+0.2×0.2,0.5×0.7+0.3×0.4+0.2×0.3,0.5×0.1+0.3×0.5+0.2×0.4,0.5×0+0.3×0.1+0.2×0.1）=（0.14,0.53,0.28,0.05）