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Plane Graphic Calculator A Java 1.0 calculator that can plot the graph of mathematical functions; it also supports complex numbers, vectors, and parametrically-defined functions. Author's Notes: Hold down the left mouse button on point a or b, and move it around. The point f represents the sum a+b. The three points represent either complex numbers or vectors. If you keep both a and b on the horizontal x axis, you'll see that a+b works just like it does for real numbers on the number line. That's true for most of the calculator's functions. Click the box labeled Function to select another built-in function. In the box at the bottom left, type 2x+1, then hit the Enter key. In the box at the bottom right, type sin x, then hit the Enter key. Hold down the right mouse button anywhere on the graph and move it around. Click the box labeled Function and scroll it down to select some more examples of user-defined functions. How To Use: Download PGC-1.0.zip (127 KB) Unzip with a compression utility. Java Source: unavailable Sample HTML Source: <applet code="PGC.class" archive="PGC.jar" width=560 height=440> <param name=launch_button value=""> <param name=launch_size value=""> <param name=control_panel value=1> <param name=graph_border value=1> <param name=background_image value=""> <param name=builtin_functions value=1> <param name=builtin_examples value=1> <param name=center value="(0,0)"> <param name=zoom value=80> <param name=line value=1> <param name=plot value=0> <param name=spin value=0> <param name=active value="a"> <param name=t_minimum value=-10.0> <param name=t_maximum value=10.0> <param name=t_count value=200> <param name=a value="(1,1)"> <param name=b value="(1.125,-0.25)"> <param name=c value="(-0.5,-1.0)"> <param name=d value="(-0.25,0.5)"> <param name=f value=""> <param name=g value=""> <param name=h value=""> <param name=k value=""> <param name=m value=""> <param name=n value=""> </applet> Status: Free Author: J Lillge Homepage: http://www.accesscom.com/~lillge/pgc Upload Date: August 1, 2000

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