Three-Dimensional Plots:

The MATLAB has many functions which will display three-dimensional plots. Most of these functions have similar name as corresponding two-dimensional plot function with a 3 at the end. For illustration, the three-dimensional line plot function is known plot3. The other functions involve bar3, pie3, and stem3.

The Vectors presenting x, y, & z coordinates are passed to the plot3 & stem3 functions. Such functions display the points in three-dimensional space.

By clicking on the rotate 3D icon and then in the plot permits the user to rotate the view to see the plot from various angles. Using the grid function also makes it easier to visualize, as shown in figure.

Figure: Three-dimensional plot with a grid.

>> x = 1:5;

>> y = [0 -2 4 11 3];

>> z = 2:2:10;

>> plot3(x,y,z,'k*')

>> grid