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

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.

[James Tursa]

Is this homework? What have you tried so far?

[Tom]

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.

Answer 1

[Walter Roberson]

reshape( 1:100, 10, 10) .'

[Tom]

Many thanks Walter!

[Sudeepta Banerjee]

Thank you Man

Answer 2

[Steven Lord]

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

Answer 3

[SYED ABOU ILTAF HUSSAIN]

Try this a= [1:10]; for i=2:10 a(i,:)=a(i-1,:)+10; end

Answer 4

[DGM]

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

Answer 5

[finess]

create a new 4x4 matrix that is filled with the number 100

[Stephen23]

"create a new 4x4 matrix that is filled with the number 100"

What did you try so far?

[finess]

I tried to make a matrix A that would print the number 100 a hundred times but It didn't really work well! I am not sure why

A(:)=100

that was it

[Walter Roberson]

A = zeros(4,4);
A(:) = 100

A = 4×4

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

[finess]

thanks mhn roberson !

Appreciate that ! would you guys recommend some resources to check out the basics of programming in matlab ! I want learn how to figure out problems in matlab but it keeps puzzling me

[finess]

but again why is the answer the way it is ?

[Les Beckham]

I recommend using this free Matlab training course (link below):

Matlab Onramp

[Walter Roberson]

There are a number of different ways to achieve the same result.

A = 100 + zeros(4,4)

A = 4×4

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

A = 100 * ones(4,4)

A = 4×4

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

A = 100; A = A(ones(4,4))

A = 4×4

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

A = zeros(4,4); A(:) = 100

A = 4×4

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

A(1:4,1:4) = 100

A = 4×4

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

A = repmat(100,4,4)

A = 4×4

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

[finess]

Wow I love these Answers! It gives me a feeling of how a great teacher looks like, with great options for students

[DGM]

Flagged by 博文 on 23 Apr 2024:

GOOD