Plotting Inequalities in Matlab

68 次查看（过去 30 天）
John Buethe
John Buethe 2022-6-28
评论： John Buethe 2022-6-28
Hey all,
I have to plot some inequalities for a controls assignment for school and I was wondering if you all could help me.
The inequalities are:
x > 0
y > 5/x
y > (x^(2)-25)/5*x
Right now my code looks like this:
figure (3); clf
[x,y] = meshgrid(-10:0.02:10, -10:0.02:10);
ineq = (x > 0) & (y > 5./x) & (y > (x.^(2)-25)./(5*x));
x(~ineq) = NaN;
y(~ineq) = NaN;
plot(x(:),y(:)); box on; grid on;

请先登录，再回答此问题。

采纳的回答

KSSV
KSSV 2022-6-28
编辑：KSSV 2022-6-28
Ran in:
x = -10:0.1:10 ;
y = -10:0.1:10 ;
[X,Y] = meshgrid(x,y);
ineq = (X > 0) & (Y > 5./X) & (Y > (X.^(2)-25)./(5*X));
h = pcolor(X,Y,double(ineq)) ;
h.EdgeColor = 'none' ;
If you want to display on the region which satisfies.
x = -10:0.1:10 ;
y = -10:0.1:10 ;
[X,Y] = meshgrid(x,y);
ineq = (X > 0) & (Y > 5./X) & (Y > (X.^(2)-25)./(5*X));
ineq = double(ineq) ;
ineq(ineq==0) = NaN ;
h = pcolor(X,Y,double(ineq)) ;
h.EdgeColor = 'none' ;

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

产品


版本

R2020a

Community Treasure Hunt

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

Start Hunting!

Translated by