Reshape an array in MATLAB

Dear Freelancer,

i have a reshape task for Matlab. I know how to use reshape but I am stuck with this one:

I have matrix a = reshape(1:81, 9,9);

a =

1 10 19 28 37 46 55 64 73

2 11 20 29 38 47 56 65 74

3 12 21 30 39 48 57 66 75

4 13 22 31 40 49 58 67 76

5 14 23 32 41 50 59 68 77

6 15 24 33 42 51 60 69 78

7 16 25 34 43 52 61 70 79

8 17 26 35 44 53 62 71 80

9 18 27 36 45 54 63 72 81

My goal is to transform "a" into "a_reshape"(which is a 3x3x3x3 matrix). The first a(1:3,1:3) elements of "a" should form the following block in the new matrix a_reshape(:,:,1,1)

ans =

1 10 19

2 11 20

3 12 21

The next elements of a(1:3, 3:6) shall be a_reshaped(:,:,1,2)

ans =

28 37 46

29 38 47

30 39 48

a(1:3, 6:9) shall be a_reshaped(:,:,1,3)

a(3:6, 1:3) shall be a_reshaped(:,:,2,1)

ans =

4 13 22

5 14 23

6 15 24

and so on until the end when a(7:9,7:9) is mapped to a_reshaped(:,:,3,3)

I want to be able to generalize the code easily to other cases like when "a" is a 8x8 matrix and "a_reshahpe" is 2x2x2x2x2x2 or a 4x4x4x4 matrix

I think the project is quiet easy and you should be able to do it in a day or maybe even few hours. I m looking forward to work with you and thank you for your help :)

Loius

Алгоритм Електротехніка Техніка Математика Matlab and Mathematica

ID Проекту: #16230010

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