Nothing on my plot is showing up, anyone know why?
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
figure(1);
clf;
x = [linspace(50,100,1000) linspace(0,50,1000)];
z = -x(1).*x(2).*exp(-(x(1)^2 + x(2)^2)./3);
plot(x,z,'c-');
0 comentarios
Respuestas (2)
Chad Greene
el 31 de Mayo de 2016
Something's there, but it's a straight line of zeros because exp(-(x(1)^2 + x(2)^2)./3) equals zero and cyan is difficult to see.
Walter Roberson
el 1 de Jun. de 2016
You define your x as the row concatenation of two linspace() . You extract two values from that linspace and you plot. And the portion you plot is numerically zeros.
[x1,x2] = ndgrid(linspace(-10,10,1000), linspace(-10,10,1000));
z = -x1.*x2.*exp(-(x1.^2 + x2.^2)./3);
surf(x1, x2, z, 'edgecolor', 'none');
3 comentarios
Walter Roberson
el 1 de Jun. de 2016
You have two independent variables, x and y, and one depending variable, z. You need 3 dimensions to plot the shape it makes. You could, though, instead produce a 2D image that is color coded:
imagesc(z)
Ver también
Categorías
Más información sobre Line Plots en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!