Defining boundary condition at infinite x for ODE

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Daniyar
Daniyar 2013-3-8
Hello,
I am solving ODE, and how can I write Matlab command to express the termninal x value as infinite?

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回答（1 个）

Youssef Khmou
Youssef Khmou 2013-3-9
hi Daniyar, You mean setting Tspan as Inf ? if yes then :
i do not think its logic to make the bound as Inf , but instead make a large value , ok try this :
>>f=@(y,x) sin(x+y).*exp(-x.^2-y.^2)
>>[t,y]=ode15s(f,[1 2],[0 Inf])
>>[t,y]=ode15s(f,[1 2],[0 1e+9])
does this helps ?

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