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Does anyone know what is the input argument in line 3 mean?

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CodeElinesa
CodeElinesa 2018-1-22
关闭： MATLAB Answer Bot 2021-8-20
it is a functional file, and I tried to run it, but it told me there is a error in line3. Someone plz helps me...TY!
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James Tursa
James Tursa 2018-1-22
In the future, never post screenshots of your code. We can't run screenshots at our end, so we would be forced to retype your code in line-by-line in order to test run it. Please post your code as text, then highlight it and push the "{ } Code" button to format it.

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回答（1 个）

James Tursa
James Tursa 2018-1-22
编辑：James Tursa 2018-1-22
You probably pushed the green triangle "run" button in the editor, or you entered "myiftest" at the command line without giving any arguments. In both cases, x will be undefined and you will get the error. You need to give an argument, e.g.,
myiftest(2.5)

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