C Plotting program for general purpose using postscript call init call viewport(0.2,0.2,0.8,0.8) call xyworld(0.0,0.0,1.0,1.0) call linewidth(2.0) call circ1(0.3, 0.3, 0.2) call linewidth(1.0) call rect1(0.6, 0.1, 0.8, 0.5) call fin stop end