  Numerical algebraic geometry is the field of computational mathematics
concerning the numerical solution of polynomial systems of equations. Bertini,
a popular software package for computational applications of this field,
includes implementations of a variety of algorithms based on polynomial
homotopy continuation. The Macaulay2 package Bertini.m2 provides an interface
to Bertini, making it possible to access the core run modes of Bertini in
Macaulay2. With these run modes, users can find approximate solutions to
zero-dimensional systems and positive-dimensional systems, test numerically
whether a point lies on a variety, sample numerically from a variety, and
perform parameter homotopy runs.
