# How do I create a (10,10) matrix containing numbers from 1 to 100?

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Tom on 18 Sep 2013
Commented: finess on 28 Aug 2022
How do I create a (10,10) matrix containing numbers from 1 to 100?
I just want the numbers to go 1 to 10 on the top row, then 11-20 on the 2nd row etc.
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Tom on 18 Sep 2013
I did it using
ij = [1:10 ; 11:20 ; 21:30 ; 31:40 ; 41:50 ; 51:60 ; 61:70 ; 71:80 ; 81:90 ; 91:100]
but Walter's is better obviously. I'm just getting going on my Master's dissertation in Audio Acoustics.

Walter Roberson on 18 Sep 2013
reshape( 1:100, 10, 10) .'
##### 2 CommentsShowHide 1 older comment
Sudeepta Banerjee on 25 Jan 2022
Thank you Man

SYED ABOU ILTAF HUSSAIN on 2 Sep 2018
Edited: SYED ABOU ILTAF HUSSAIN on 2 Sep 2018
Try this a= [1:10]; for i=2:10 a(i,:)=a(i-1,:)+10; end

Steven Lord on 25 Jan 2022
Another solution using implicit expansion (which wasn't available back in 2013 when this question was posted):
n = 10;
A = (1:n) + n*(0:n-1).'
A = 10×10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

DGM on 25 Jan 2022
Edited: DGM on 25 Jan 2022
If we're posting solutions which are instructive, even if not ideal:
A = zeros(10);
A(:) = 1:100;
A = A.'
A = 10×10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

finess on 26 Aug 2022
create a new 4x4 matrix that is filled with the number 100
finess on 28 Aug 2022
Wow I love these Answers! It gives me a feeling of how a great teacher looks like, with great options for students

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