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MATLAB Homework

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Chet
Chet 2011-11-30
回答： Rushi Auti 2020-7-28
Can someone help me with this homework? I'm extremely new to MATLAB and have no idea how to do this.
1)Solve the equation Ax=b and answer the following questions
Where A=[1 2 3 4; 4 2 3 1; 4 3 1 5; 4 3 2 5]
b=[1; 2; 3; 4]
a)What are the dimensions of the x vector?
b)What is the solution vector?
2)Using the same A calculate A-transpose
a)What are the dimensions of A-transpose?
b) What i the A-transpose vector?
THANK YOU!
  1 个评论
Jan
Jan 2011-11-30
Reading the Getting Started chapters of the documentation is a good idea. All necessary basics are explained there.

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回答（2 个）

Image Analyst
Image Analyst 2011-11-30
Hint: look up the size() function. And I'm sure if you looked up transpose in the help you'd find the apostrophe operator. A transposed would be another array, not a vector.
Rushi Auti
Rushi Auti 2020-7-28
A=[1 2 3 4; 4 2 3 1; 4 3 1 5; 4 3 2 5];
b=[1; 2; 3; 4];
x = b/A
size(x)
P = A';

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