I know Parabola have formula z=x^2+y^2 now I want to plot it when it has simple shifted like image: http://i55.tinypic.com/33y50kx.gif I know how to plot3 or surf but I don't know how to plot3 this one.
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plot3(X+10,Y+10,Z); %this shifts the parabola 10 units on both x and y axis
x=-10:0.1:10; y=x; z=x.^2+y.^2; ang=pi/4; sm=[cos(ang) 0 sin(ang) 0 1 0 -sin(ang) 0 cos(ang)]; r=sm*[x;y;z]; x=r(1,:);y=r(2,:);z=r(3,:); [x,y]=meshgrid(x,y); plot3(x,y,z)
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