MATLAB: How to loop into a matrix

matrix loop

I have six values of E and v which are entries of Matrix s of the structure; s=[1/E -v/E 0; v/E 1/E 0; 0 0 2*(1+v)/E]

the six matrices of s formed are the entry into the matrix S; S=[s(1) s(2) s(3) s(4) s(5) s(6)]

How can I loop the values of E and v into the matrix s?

Best Answer

I assume you are trying to do something like

 for ii = 1:6
    S{ii} = [1 -v(ii) 0; v(ii) 1 0; 0 0 2*(1+v(ii))]/E(ii);
 end

Note that S is a cell array, so your first matrix (your s(1)) would be accessed as S{1}.

Related Solutions

MATLAB: What is wrong with the for loop

elements = 4;

s=3; %size of matrix nxn

k=[1 1 1; 1 1 1; 1 1 1];

length = (s* elements) - (elements-1);

K = zeros(length,length);

for j = 0:elements-1

index =(1:s);

n = index + j*(s-1);

K(n,n) = k(1:s,1:s);

end

for i = 1:elements-1

K(((i*s)-(i-1)), ((i*s)-(i-1))) = k(1,1)+k(s,s);

end

This does exactly what I want I answered my own question nevermind. Here it is for reference.

MATLAB: Help using loop and range interval

v = randi([0,30],60,1); % Let your data
k0 = 0.5*1.29*9.62;
c = [0;.4;.2;.1;.001];
k = [-inf;3;10;14;25;inf];
[~,b] = histc(v,k);
model = k0*v.^3.*c(b);

with loop for..end

n = numel(v);
model = zeros(n,1);
k0 = 0.5*1.29*9.62;
for ii = 1:n
    if v(ii) < 3
        cp = 0;
    elseif v(ii) >=3 && v(ii) < 10
        cp = 0.4;
    elseif v(ii) >= 10 && v(ii) < 14
        cp = 0.2;
    elseif v(ii) >= 14 && v(ii) < 25
        cp = 0.1;
    elseif v(ii) >= 25
        cp = 0.001;
    end
    model(ii) = k0*v(ii).^3*cp;
end

Best Answer

Related Solutions

MATLAB: What is wrong with the for loop

MATLAB: Help using loop and range interval

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