Phase Plane Analysis

GUI for visualizing the direction field of two coupled first order nonlinear differential equations

PHASEPLANEANALYSIS is a GUI tool for visualizing the direction field of two coupled first order nonlinear autonomous differential equations.
PHASEPLANEANALYSIS without input uses the Symbolic Math Toolbox to obtain the critical points.
PHASEPLANEANALYSIS(XCOORD,YCOORD) takes the provided x and y coordinates of the critical points instead of invoking the Symbolic Math Toolbox to compute the roots. There are no output arguments. In order to obtain usage, click on the Usage submenu within the Help menu and read the informative tooltips.