What am I doing wrong?

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Marina Vozzella
Marina Vozzella 2020-9-22
编辑： Abdolkarim Mohammadi 2020-9-22
I am following a line of code from a MATLAB book line for line but keep getting this error code and I'm not understanding why.
>> f = @(mu,x) mu*x-x.^3;
>> x = linspace(-5,5);
>> f_many = [f(-5,x) f(0,x) f(5,x) f(45,x)];
>> plot(x,f_many)
Error using plot
Vectors must be the same length.

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回答（1 个）

Abdolkarim Mohammadi
编辑：Abdolkarim Mohammadi 2020-9-22
For drawing multiple line plots at once, you should have one column vector for each line. You just need to have x as a column vector. f_many will also be an array with four columns.
x = linspace (-5,5)';

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