It appears that dfield8 and pplane8 programs are not compatible with MATLAB version r2015a, installed on ITaP computers. Instead, you can do the following.

• Use the java versions of these programs that can be found here: http://math.rice.edu/~dfield/dfpp.html. Note: This requires the Java Runtime Environment 1.6 or newer.

• [Works again] Use MATLAB r2014a that can still be found in ITaP Software Remote:

• Go to the folder Standard Software / Computational Packages / MATLAB, where you can find MATLAB version r2014a. (Note: There are two copies of MATLAB r2015a, one in the top level directory, and one in Standard Software / Computational Packages /. Dont’t use those.)

Update Aug 29, 2015: The version r2014a was removed last week, but was kindly restored by ITaP, following the request from Math Department.