What am I doing wrong?

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.

Answer 1

[Abdolkarim Mohammadi]

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)';