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4 votes

Singularity or stiff system suspected in ODE that shouldn't have a singularity in the solution range

This ODE also can be solved symbolically. ...
bbgodfrey's user avatar
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4 votes
Accepted

Singularity or stiff system suspected in ODE that shouldn't have a singularity in the solution range

If we can solve $$ \int_{v_0}^{v_s} {dv \over v} = \int_{p_0}^\infty {dp \over A + Bp + Cp^2 +Dp^3} \,,$$ we will obtain the value $v_s$ at which the IVP $$ {dp \over dv} = {A + Bp + Cp^2 +Dp^3 \over ...
Michael E2's user avatar
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3 votes

Singularity or stiff system suspected in ODE that shouldn't have a singularity in the solution range

If you integrate your equation backwards from 1000 you see that it will diverge near 815: ...
Daniel Huber's user avatar
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2 votes
Accepted

Why does singular solution not satisfy the ode?

This extended comment may help explain the situation. The right side of ode has a branch cut on the negative real axis of y due ...
bbgodfrey's user avatar
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