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To run this program, doubleclick on the Desktop Matlab icon and type in the
command ``dfield6'' followed by a return. After a wait, a
window will pop up where you can enter any
equation x'=f(x,t) you'd like to study. Some interesting ones to try
include:

x'= .3 *x *(1x).
 x'= t*x.

.
 x'= x^{2}.
 x'= x^{2}t^{2}.
A Java version of this program is available on the web at
the URL
http://math.rice.edu/dfield/dfpp.html.
root
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