MATLAB: I am defining the nodes . the first set is how i want it but when i run it, it gives me the error of #Subscript indices must either be real positive integers or logicals but if i swap the last two enteries it works fine

paiuia

crackplanenodes = [ 4 0 7; 4 0.5 7; 4 1 7; 10 0 7; 10 0.5 7; 10 1 7] crackplanenodes = [ 4 0 7; 4 0.5 7; 4 1 7; 10 0 7; 10 7 0.5; 10 7 1]

Best Answer

It works fine either way. What matters is what you will do with that array AFTERWARDS.
crackplanenodes = [ 4 0 7; 4 0.5 7; 4 1 7; 10 0 7; 10 0.5 7; 10 1 7]
crackplanenodes =
            4            0            7
            4          0.5            7
            4            1            7
           10            0            7
           10          0.5            7
           10            1            7
crackplanenodes = [ 4 0 7; 4 0.5 7; 4 1 7; 10 0 7; 10 7 0.5; 10 7 1]
crackplanenodes =
            4            0            7
            4          0.5            7
            4            1            7
           10            0            7
           10            7          0.5
           10            7            1
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