More specifically, the approach is different for the else cases for fxr<fv(n+1). In your implementation, there is either a small contraction or small reflection or a multi-contration (shrink). In the original paper, shrinking can be combined with small reflection and small contration. However, this is only a minor difference from the original paper and will of course work.
07 Dec 2013
The method is based on iterations of full-dimensional simplex calls
Author: Zeljko Bajzer