noun

• 1Mathematics Physics
  A representation of the phase space of a dynamic system, indicating all possible trajectories.

  1. 1.1The intersection of a Poincaré map representation with a given line, plane, etc.
     ‘The resulting plot, known as a Poincaré section, shows points scattered across the plane - like bullets puncturing a sheet of paper.’
     More example sentences

     • ‘This is called a Poincaré section (above right), and the intersections of the red and green lines mark the locations and speeds at which one can segue from manifold to manifold for free.’