English: An example of equilibrium point and vector field. The vector field is defined by

${\displaystyle {\begin{cases}{\dfrac {dx}{dt}}=x(2-x-y)\\{\dfrac {dy}{dt}}=x-y\end{cases}}}$

and the two blue equilibrium points of (0, 0) and (1, 1) exist in it.

This figure was written by the uploader with the following reference.

• 桑村 雅隆 (2015年) パターン形成と分岐理論 ―自発的パターン発生の力学系入門、シリーズ・現象を解明する数学 (初版 ed.)、共立出版、pp. 34–36 ISBN: 978-4-320-11004-5.