Warning: Imaginary parts of complex X and/or Y arguments ignored

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Vincenzo 2015-1-13

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https://ww2.mathworks.cn/matlabcentral/answers/169809-warning-imaginary-parts-of-complex-x-and-or-y-arguments-ignored

回答： Dr. JANAK TRIVEDI 2023-2-3

Hello! i have a kind of problem. Why Warning: Imaginary parts of complex X and/or Y arguments ignored ????

Thank you in advance!

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Tushar Behera 2023-2-3

Hi Vincenzo,

It is very unclear what you want to do from your question. It will be great if you provide some context as of what you were trying to do when this error came. Code snippets, your workflow etc. will be helpful in solving your query.

Regards,

Tushar

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Answer 1

Dr. JANAK TRIVEDI 2023-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/169809-warning-imaginary-parts-of-complex-x-and-or-y-arguments-ignored#answer_1163006

This warning message is generated by MATLAB when it encounters complex numbers in a plot but only the real part of the complex numbers is plotted. If you want to plot both real and imaginary parts of a complex number, you can convert the number to magnitude and phase form and then plot the magnitude and phase separately. The warning message simply informs you that the imaginary part of the data is being ignored and not plotted.