Changed the way to calculate weights in the tetrahedron method to avoid divergence when g = 0.
Changed the way to calculate weights in the tetrahedron method to avoid divergence when g = 0.

ttadano/alamode,ttadano/ALM,ttadano/alamode,ttadano/ALM,ttadano/ALM,ttadano/alamode,ttadano/ALM,ttadano/alamode