Graph not being displayed

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Ali Ahmed
Ali Ahmed on 6 Oct 2022
Commented: Ali Ahmed on 6 Oct 2022
I wrote a very simple code:
x=linspace(-5,5,130);
y=((2.*x.^2)-(2.*x)-1)/((x.^4)+1);
plot(x,y);
This code doesnt display the graph, the coordinate plane is just empty. I cant figure out whats wrong with it.

Accepted Answer

Torsten
Torsten on 6 Oct 2022
./ instead of simple / :
x=linspace(-5,5,130);
y=(2*x.^2-2*x-1)./(x.^4+1);
plot(x,y);
  1 Comment
Ali Ahmed
Ali Ahmed on 6 Oct 2022
Yes It worked, Thank You!

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More Answers (1)

the cyclist
the cyclist on 6 Oct 2022
Edited: the cyclist on 6 Oct 2022
You missed a place where you need an element-wise operation. Try
x=linspace(-5,5,130);
y=((2.*x.^2)-(2.*x)-1)./((x.^4)+1); % You did not have ./, so y was not what you expected
plot(x,y);

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