The Wenwang approach is much more technical and a calculator is very appreciable.
ProSuite concentrates all the useful information of the drawing which is a function of the day: subject / object, nature of the traits, hidden relationships, associated branches, void, animals, traits and mutant relations, as well as the different fan yin et fu yin.
The cartouche recalls the date, the voids, the gua shen, as well as the family and the generation of the hexagram drawn.