plot phase portrait the below DAEs

Question:plot phase portrait the below DAEs

Posted: aylin 25 Product: Maple

August 06 2014

Hi all,

I try to plot phase portrait the below DAEs,

diff(S(t), t)=-β*(1+δ*sin2Πt)*S(t)*I(t)-μ*S(t)+μ,

diff(I(t), t)=β*(1+δ*sin2Πt)*S(t)*I(t)-γ*I(t)-μ*I(t),

0=S(t)+I(t)+R(t)-1.

where

μ=0.01,

β=1510,

δ=0.02,

γ=50,

I really appreciate your help.

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