A 是个6X8的矩阵 b= 6X1 用RREF TO SOLVE THE EQUATION Ax=b,求各位强人我用MATLAB算出来答案是6X3矩阵?A =1 3 0 5 -4 1 7 80 4 1 2 5 6 3 -90 6 0 0 5 5 7 13 1 -6 5 4 -3 2 02 0 0 5 5 -6 0 18 1 0 0 0 1 2 0b =22581>> R=rref([A b])R =1.0000
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A 是个6X8的矩阵 b= 6X1 用RREF TO SOLVE THE EQUATION Ax=b,求各位强人我用MATLAB算出来答案是6X3矩阵?A =1 3 0 5 -4 1 7 80 4 1 2 5 6 3 -90 6 0 0 5 5 7 13 1 -6 5 4 -3 2 02 0 0 5 5 -6 0 18 1 0 0 0 1 2 0b =22581>> R=rref([A b])R =1.0000
A 是个6X8的矩阵 b= 6X1 用RREF TO SOLVE THE EQUATION Ax=b,求各位强人我用MATLAB算出来答案是6X3矩阵?
A =
1 3 0 5 -4 1 7 8
0 4 1 2 5 6 3 -9
0 6 0 0 5 5 7 1
3 1 -6 5 4 -3 2 0
2 0 0 5 5 -6 0 1
8 1 0 0 0 1 2 0
b =
2
2
5
8
1
>> R=rref([A b])
R =
1.0000 0 0 0 0 0 0.0654 -0.1198 -0.0923
0 1.0000 0 0 0 0 1.8022 3.0231 0.8692
0 0 1.0000 0 0 0 -0.1118 -0.1548 -1.1170
0 0 0 1.0000 0 0 0.0208 -0.8671 -0.0070
0 0 0 0 1.0000 0 -0.4373 -1.3628 0.0874
0 0 0 0 0 1.0000 -0.3253 -2.0649 -0.1305
use matlab command 'rref' solve the equation
your interpretation of the matlab output ie.the solution of the equation.write done use hand.完全不了解怎么回答题目2,是要手算吗?
0
A 是个6X8的矩阵 b= 6X1 用RREF TO SOLVE THE EQUATION Ax=b,求各位强人我用MATLAB算出来答案是6X3矩阵?A =1 3 0 5 -4 1 7 80 4 1 2 5 6 3 -90 6 0 0 5 5 7 13 1 -6 5 4 -3 2 02 0 0 5 5 -6 0 18 1 0 0 0 1 2 0b =22581>> R=rref([A b])R =1.0000
问题1. 正确.
问题2. 是让根据Matlab输出结果写出方程组的解.
答案不是6*3矩阵. 应该是:
-0.0923 0.0654 -0.1198
0.8692 1.8022 3.0231
-1.1170 + c1 * -0.1118 + c2 * -0.1548
-0.0070 0.0208 -0.8671
0.0874 -0.4373 -1.3628
-0.1305 -0.3253 -2.0649
0 -1 0
0 0 -1
c1,c2为任意常数