If the MATLAB Symbolic Toolbox is present, there will be buttons
indicated 'symbolically'. The first-order derivatives are used in some of the
integration algorithms, the first- and second-order derivatives are used in
the continuation, while the third-order derivatives are employed in the normal form
computations. The derivatives of fourth and fifth order are only used in the normal form
computations of some codimension 2 bifurcations.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.