Introduction - If you have any usage issues, please Google them yourself
We will use MatCont to start homoclinic orbits that emanate BT points in several models 1 . Recall
that in the GUI of MatCont k is denoted as TTolerance. In all examples, we will set TTolerance=10
− 5
(k). As a rule, the amplitude (A) should always be larger than TTolerance given the geometric meaning
of both variables, cf. Figure 1. In all cases, ε 0 and ε 1 are the free homoclinic parameters since this appears
to be the most stable choice. As another rule, the BT point itself should be computed to a geometric
precision signifi cantly smaller than TTolerance. This can be achieved in MatCont by decreasing the
tolerances VarTolerance and TestTolerance for the curve on which the BT points are detected.