![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/178496/image.png)
How to shade area of Integral
16 views (last 30 days)
Show older comments
Hi I have a simple function y(z) = -1*z^3+4*z^2+-5*z+2 I have the integral in range of x= 0-5. I have the plot of the graph. I would like to shade this area on the graph.
What do I do? THANKS!
0 Comments
Accepted Answer
Star Strider
on 24 Sep 2015
I’m not quite certain what you want. This shades the area between the x-axis and the value of the integral over the interval (0,5):
y = @(z) -1*z.^3+4*z.^2+-5*z+2;
x = linspace(0, 5);
inty = cumtrapz(x,y(x));
figure(1)
plot(x, inty, '-k', 'LineWidth',1)
hold on
patch([x fliplr(x)], [zeros(size(x)) fliplr(inty)], 'g')
hold off
grid
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/178496/image.png)
4 Comments
Star Strider
on 25 Sep 2015
My pleasure!
The sincerest expression of appreciation here on MATLAB Answers is what you have already done, that being your Accepting my Answer. If we ever meet, a coffee or beer together would be nice!
More Answers (1)
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!