Numerical Schubert Calculus with PHCv2.3.16

This directory was delivered with release 2 of PHCpack,
with some minor updates in release 2.1 for the connection with C.
In release 2.2, the code for SAGBI and Pieri homotopies was
dispersed in two separate subdirectories, to make room for the
new homotopies to implement Schubert Induction.
In release 2.3 most changes are in Induction.

The organization of this library as part of the organization tree
of the source code of PHCpack is as follows:

   Schubert             : 5. numerical Schubert calculus
      |-- SAGBI         : 5.1 SAGBI homotopies
      |-- Pieri         : 5.2 deformations based on Pieri's rule
      |-- Induction     : 5.3 Schubert induction
