How to make a 3x3 matrix
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Hello every one; I want to make a 3x3 general matrix using three different function as shown in code. It is working but I want to know how to save the results in three different lines of same matrix. Also how to run this matrix in command window for some defined value of theta. Thanks
syms theta;
for x=1:3
beta=0:2*pi/3:4*pi/3;
if x==1
L1 =cos(theta+beta);
elseif x==2
L2=cos(theta+beta-2*pi/3);
else
L3=cos(theta+beta+2*pi/3);
end
end
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Accepted Answer
Jan
on 4 Jun 2018
Edited: Jan
on 4 Jun 2018
syms theta;
beta = 0:2*pi/3:4*pi/3;
L = [cos(theta+beta); ...
cos(theta+beta-2*pi/3); ...
cos(theta+beta+2*pi/3)]
Or if you really nee a loop:
syms theta;
beta = 0:2*pi/3:4*pi/3;
for x = 1:3
if x==1
L(1, :) = cos(theta+beta);
elseif x==2
L(2, :) = cos(theta+beta-2*pi/3);
else
L(3, :) = cos(theta+beta+2*pi/3);
end
end
If your array is larger, care for a pre-allocation. A cheap method would be:
for x = 3:-1:1 % Backwards for implicit pre-allocation
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