Question: Plotting Phase Portrait for a four equation system

Hi,

 

I'm trying to plot a few phase portraits for this four equation system but maple wont let me...

> restart;

> s := 10; d[T] := 0.2e-1; k1 := 2.4*10^(-5); k2 := 3*10^(-3);
> N := 5; delt := .24; c := 2.4; T0 := 1; 
with(DEtools); 
with(plots);
 

[INSERT YOUR CODE HERE BY COPY-PASTING IN 1-D FORMAT]


Can someone please help me? Thanks
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