identity matrix nth order

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Jasneet Singh
Jasneet Singh on 19 Mar 2021
Answered: VBBV on 27 Feb 2022
n = [1:1:20];
M=eye(n).*0.02
its not working !! i got an error that says eye() can't draw n dimensional arrays..can it be corrected ?
if not is there any other alternative to this?

Answers (2)

ANKUR KUMAR
ANKUR KUMAR on 19 Mar 2021
Edited: ANKUR KUMAR on 19 Mar 2021
n=20;
eye(n) % identity matrix of order 20
eye(randi(50,1,1)) % identity matrix of a random order generated by randi

VBBV
VBBV on 27 Feb 2022
n = [1:1:20];
for k = 1:length(n)
M{k}=eye(n(k)).*0.02;
X = sprintf('Identity matrix of order %0d',k);
disp(X)
I = M{k}
end
Identity matrix of order 1
I = 0.0200
Identity matrix of order 2
I = 2×2
0.0200 0 0 0.0200
Identity matrix of order 3
I = 3×3
0.0200 0 0 0 0.0200 0 0 0 0.0200
Identity matrix of order 4
I = 4×4
0.0200 0 0 0 0 0.0200 0 0 0 0 0.0200 0 0 0 0 0.0200
Identity matrix of order 5
I = 5×5
0.0200 0 0 0 0 0 0.0200 0 0 0 0 0 0.0200 0 0 0 0 0 0.0200 0 0 0 0 0 0.0200
Identity matrix of order 6
I = 6×6
0.0200 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0.0200
Identity matrix of order 7
I = 7×7
0.0200 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0.0200
Identity matrix of order 8
I = 8×8
0.0200 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0.0200
Identity matrix of order 9
I = 9×9
0.0200 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0.0200
Identity matrix of order 10
I = 10×10
0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0.0200
Identity matrix of order 11
I = 11×11
0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0.0200 0
Identity matrix of order 12
I = 12×12
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0
Identity matrix of order 13
I = 13×13
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0
Identity matrix of order 14
I = 14×14
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0
Identity matrix of order 15
I = 15×15
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0
Identity matrix of order 16
I = 16×16
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0
Identity matrix of order 17
I = 17×17
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0
Identity matrix of order 18
I = 18×18
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0
Identity matrix of order 19
I = 19×19
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0
Identity matrix of order 20
I = 20×20
0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0200 0 0 0 0 0 0 0 0 0 0
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