I trying to make phase portrait with sage (without using maple) with plot_vector_field function, but all my tryings fail. My system looks like:
x''+x=f(x) , where f(x)= a, when x>b x*a/b, when -b<=x<=b -a, when x<-b a,b - predefined constants (positive) how I must do this? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
