Clear Filters
Clear Filters

Plotting Level Curves after function

4 views (last 30 days)
lateef on 24 Mar 2023
Commented: Star Strider on 25 Mar 2023
how do i plot level curves in matlab
such as c = 0, 0.5, 1, ..., 3.
i have already computed the code for the function
f (x, y) = (x2 + 3y2)e1x2 y2
over the domain 1 x 1, 1 y 1.

Answers (1)

Star Strider
Star Strider on 24 Mar 2023
Use the contour function.
You can use fcontour, however it will not be possible to export its results to plot with contour.
lateef on 25 Mar 2023
ive attached my currrent code i want to add level curves too using fcountour the code gets an error message
Star Strider
Star Strider on 25 Mar 2023
If you want to use a function handle, my code changes to:
f = @(x,y) (x.^2 + 3*y.^2).*exp(1-x.^2-y.^2);
fcontour(f, [-1 1 -1 1], 'LevelList',[0:0.5:3], 'Fill','on')
That is the only change necessary. The 'Fill','on' is optional.
Your code would work with contour or contourf, although not with fcontour, since fcontour creates its own matrices and does not take them as arguments.

Sign in to comment.


Find more on Graphics Performance in Help Center and File Exchange


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!