i want to compare between 3 matrices

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Hassan Bosha
Hassan Bosha 2020-4-6
评论： Hassan Bosha 2020-4-6
I have an equation that i have 3 matrices
i should compare to each other with an if statment
I1 and I2 are matrices
plus what if i want to compare I1 == I2 == I3
if true i would print something
if I1 == I2
disp('I1 = I2')
end

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回答（1 个）

Alex Mcaulley
Alex Mcaulley 2020-4-6
Use isequal:
if isequal(I1,I2,I3)
disp('I1 == I2 == I3')
end
  2 个评论
Hassan Bosha
Hassan Bosha 2020-4-6
I don't why it's not working although they equal each other
P1 = [ 1 2 3 ];
RPY1 = [ 30 20 10];
AtoB_1 = transl([P1])*rpy2tr([RPY1]);
BtoA_1 = inv(AtoB_1);
I1 = AtoB_1 * BtoA_1
I2 = BtoA_1 * AtoB_1
I3 = eye(4)
if isequal(I1,I2,I3)
disp('I1 == I2 == I3')
end
Hassan Bosha
Hassan Bosha 2020-4-6
I solved it by rounding matrix I1 and I2

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