I'm trying to plot just one point in any coordinate system: Cartesian, cylindrical or spherical.
I tried plot3(1,1,1) with many values but just shows a tiny point in the same location for all values! I tried surf(X,Y,Z) as well but matlab said: Z must be a matrix, not a scalar or vector.
bla
How about this?
plot3(1,1,1,'.');
grid on
You did try it, but then again, that is exactly what it does!
Something like scatter3(x,y,z1,720,'g','fill') will make opaque green spheres of 720 size around all the points listed in the vectors x,y,z1.
来源：https://stackoverflow.com/questions/13748633/plot-a-3d-point-in-matlab