Code

inversefov

This code solves the inverse field of values problem as proposed by Frank Uhlig. The code takes advantage of Johnson's algorithm for sketchting the boundary of the field of values as well as the fact that the inverse field of values problem is solvable for 2 by 2 matrices.

ggraphs3dspec

This code uses spectral methods and some graph theory concepts to determine the eigenvalues and eigenmodes for a general network of strings. The inspiration for this work is from paper by VonBelow. The code is set up to handle uniform strings but it could easily be modified to handle strings of different length. We also have a nonspectral version of the code. This code was created as part of VIGRE seminar on strings which is run by professors Steve Cox and Mark Embree. see connexions module.