Create a random matrix A of m,n size entered from the keyboard. Matrix B is n,k size with k entered from keyboard

Question

Phung Khai 2021-10-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1569943-create-a-random-matrix-a-of-m-n-size-entered-from-the-keyboard-matrix-b-is-n-k-size-with-k-entered

回答： VEERAPANDIYAN RENGASAMY 2022-2-24

Can you help me :

Create a random matrix A of m,n size entered from the keyboard. Matrix B is n,k size with k entered from keyboard

a) Remove rows i and column j of the random matrix just created. With i = (n+m)mod n and j=(n+m) mod m

b) Add i+1 rows and j+1 columns to matrix A.

c) Delete element A[i,j]

d) Giving diagonal elements of matrix A

e) Giving the transposition matrix and the inverse matrix of matrix A

f) Calculate the A*B matrix.

2 个评论
显示无隐藏无

Awais Saeed 2021-10-23

What values of n,m,k would you use. I am asking because you need modifications in the matrix and there might occur a dimension error.

Image Analyst 2021-10-23

What kind of help do you need? Like a pointer to look up input(), eye(), inv(), transpose, etc. in the help?

How do I get help on homework questions on MATLAB Answers? - MATLAB Answers - MATLAB Central

By the way, c) is impossible. You can set A(i,j) to some value, like 0 or nan, but you can't delete it and leave a "hole" in the matrix.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

VEERAPANDIYAN RENGASAMY 2022-2-24

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1569943-create-a-random-matrix-a-of-m-n-size-entered-from-the-keyboard-matrix-b-is-n-k-size-with-k-entered#answer_903305

Write a code to generate a random matrix A of size m × n with m > n and calculate its Frobenius norm, ∥ · ∥F . The entries of A must be of the form r.dddd (example 5.4316). The inputs are the positive integers m and n and the output should display the the dimensions and the calculated norm value. Deliverable(s) : The code with the desired input and output