how can i prelocate arrays

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Nihar Patel
Nihar Patel 2019-9-18
回答： SaiDileep Kola 2019-9-23
  2 个评论
James Tursa
James Tursa 2019-9-19
编辑：James Tursa 2019-9-19
Please edit your question and post your code as text formatted with the CODE button. We cannot copy & paste pictures into MATLAB to try out your code. My guess is that u is a variable and not a function, so using t(i) in the indexing may be the cause of the problem.
John D'Errico
John D'Errico 2019-9-19
Yes. I think you are correct. The obvious problem is if u is a variable, are the terms like (u(t(i) + pi)). t(i) + pi will never be an exact integer.

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回答（1 个）

SaiDileep Kola
SaiDileep Kola 2019-9-23
Pre allocating arrays may not solve your problem, as the error msg states you are indexing array ”u” using either negative integers or fractions, check if “t(i)-3” value turns out to be a negative or fraction.

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