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Slopefields for the TI-82/83

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-- a program --

Given a differential equation, say y' = 3x-y, this program will make the
TI-82/83 draw a slopefield for that differential equation.
The program is available in two formats.

A binary version that you can load directly
into the graphlink program and download to your calculator. **NOTE:**
If you have trouble downloading this, try holding the shift button on your
keyboard when you click on the link.
A screen shot for those typing in by hand.

**Directions for use:**

1.We must translate the differential equation: In place
of the function (y in this case), write Y (upper case), in place of y'
write Y1,

and in place of the variable (x in this case),
write X. So for the example y' = 3x-y we translate to: Y1=3X-Y.

2.Now press [Y=] and enter our differential equation from
the last step on the first line:

3.Press [WINDOW] to select a suitable window or range.

4.Press [PRGM] and select the SLPFE program. Press
[ENTER]once to paste `prgmSLPFIELD` on your text screen;
press [ENTER] again

to run the program.

*Last Modified February 12, 2001.*

Prof.
Janeba's Home Page | *Send comments or questions to:* mjanebawillamette.edu

Department
of Mathematics | Willamette
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