【矩阵消元】
The result of multiplying a matrix by some vector is a combination of the columns of the matrix(矩阵乘以向量的结果是一个“矩阵列的线性组合”)
【矩阵消元】
The result of multiplying a matrix by some vector is a combination of the columns of the matrix(矩阵乘以向量的结果是一个“矩阵列的线性组合”)