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%% PPLANE file %% H.name = 'hopf.pps'; H.xvar = 'x'; H.yvar = 'y'; H.xder = ' mu*x- omega*y + (- x- b*y)*(x^2+y^2) '; H.yder = 'omega*x+ mu*y + (b*x - y)*(x^2+y^2) '; H.pname = {'mu','omega','','b','',''}; H.pval = {'-0.3','1','','1','',''}; H.fieldtype = 'arrows'; H.npts = 20; H.wind = [-3 3 -3 3];