Slopefields on the TI82/83
Given a differential equation, say y' = 3xy, here is how
to make the TI82/83 draw a slopefield for that differential equation.

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 we get
Y1=3XY.

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

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

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 December 7, 1998.
Prof.
Janeba's Home Page  Send comments or questions to: mjanebawillamette.edu
Department
of Mathematics  Willamette
University Home Page