5.5.1 Generic 3D Plotting

• plot3d : 3D plotting of a matrix of points : plot3d(x,y,z) with x,y,z 3 matrices, z being the values for the points with coordinates x,y. Other arguments are optional
• plot3d1 : 3d plotting of a matrix of points with gray levels
• fplot3d : 3d plotting of a surface described by a function; z is given by an external z=f(x,y)
• fplot3d1 : 3d plotting of a surface described by a function with gray levels