求教线性代数中矩阵乘法问题 线性代数问题，矩阵的乘法，单行矩阵与方阵怎么相乘
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这是常规的矩阵乘法
1×3 矩阵 乘以 3×1 矩阵，得 1×1 矩阵，就是一个数 C
C = 1×1 + 0×0 + 1×1 = 2
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