https://www.sciencedaily.com/releases/2019/11/191126121140.htm > Maurizio Porfiri, at the New York University, and Manuel Ruiz Marín, at Technical University of Cartagena, Spain, wrestled mathematical theory into quantifiable colorful maps called symbolic recurrence plots. In Chaos, from AIP Publishing, Por?ri's team has proven the method's validity. > "Pictures are very useful in understanding dynamical systems. They can help us identify the onset of patterns and whether one system influences another," said Porfiri.