home *** CD-ROM | disk | FTP | other *** search
- PLOTSURF
-
- This program plots the graphs of functions of two variables,
- such as z = f(x,y) = x^3 - 3*x*y^2. Plots of the surface are
- made in color in true perspective and plots of level curves
- and the gradient vector field are available. After a
- perspective plot has been made and saved, these can be
- recalled overwritten with demonstrations of partial and
- directional derivatives.
-
- Required Hardware: IBM PC or IBM AT or close compatible with
- EGA (Enhanced Graphics Adapter) and EGA Color Monitor.
- 276,000 bytes of free memory are required, including that
- needed to save one full-screen image. The program will run
- in 165,000 bytes of memory, but a perspective plot cannot be
- saved and the derivative demonstrations will not be
- available.
-
- It was written for the use of Calculus students, who have
- little experience with computers, in connection with our
- courses Calculus I and Calculus IV. It is therefore provided
- with no documentation, beyond that which is provided on-line
- by Selecting F1 from the Main Menu.
-
- The program was written in True BASIC (tm) to show our more
- advanced students what can be achieved by writing in that
- language.
-
- You may copy the program freely, give it to your friends,
- post it on BBS, and/or whatever, excepting only selling it.
-
- If you use it, I should greatly appreciate your comments,
- especially on the adequacy of the instructions, and bug
- reports.
-
- Prof. Eugene Zaustinsky
- Department of Mathematics
- State University of New York
- Stony Brook, New York 11794
-
- (516) 632-8250
- Home: (516) 757-4402
-
- EXEC-PC BBS (414) 964-5160 N-8-1
-