Matrix in an equation

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Konstantina Vaitsi 2020-5-12

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https://ww2.mathworks.cn/matlabcentral/answers/524870-matrix-in-an-equation

编辑： Konstantina Vaitsi 2020-5-12

I have written this script and it works ok because all the cells in CLN0 are 50. But what if each cell was different? How could I write that?

The equation is CLN(B(i,j)<5) = CLN0(i,j) - 0.5*B(i,j)

Also how do I include the CLN matrixes in the loop so that every new CLN matrix is calculated upon the previous one?

S = [12 4 6 4;16 12 2 3;0 4 10 12;4 12 21 3]
CLN0 = 50*ones(4)
i = 1:4;
j = 1:4;
for t = 0:4
B = [S(i,j)- 2*t];
B(B<0)=0
CLN = zeros(size(B));
CLN(B(i,j)<5) = 50 - 0.5*B(i,j)(B(i,j)<5);
CLN(B(i,j)>=5) = 50 + 0.5*B(i,j)(B(i,j)>=5);
CLN(50 - 0.5*B(i,j)<0) = 0(50 - 0.5*B(i,j)<0)
endfor