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Index in position 1 is invalid. Array indices must be positive integers or logical values. Error in Q (line 13) D(I,J) = D(I,J)+A(I,K).*B(K,J)

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chen dahan on 17 Apr 2021

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Answered: David Fletcher on 17 Apr 2021

HI , how can i fix line 13?

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David Fletcher on 17 Apr 2021

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https://uk.mathworks.com/matlabcentral/answers/805096-index-in-position-1-is-invalid-array-indices-must-be-positive-integers-or-logical-values-error-in#answer_677721

In Matlab indices start at 1 (your loops start at 0)

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