Yet Another extended Huckel Molecular Orbital Package (YAeHMOP) is a package of smart and reliable programs for performing extended Hueckel calculations on molecules and solids and visualizing the results.

Visualization functionality for some quantum packages (ADF and LMTO) is also provided.

YAeHMOP is intended to be an easy to use, transparent, extended Huckel calculation and visualization package which can perform calculations on both molecular and extended materials in 1,2, or 3 dimensions.