Solving a differential equation?

2015 3 6
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更新时间：2015 3 6
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I am trying to solve the equation exp(y) + (t*exp(y) - sin(y))y' = 0 using dsolve and make a contour plot and what I have is
syms y t;
sol = dsolve('exp(y) + (t*exp(y) - sin(y))*Dy = 0')
This keeps giving me the error Warning: Explicit solution could not be found; implicit solution returned.
How do I fix this?

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回答（1 个）

Torsten
Torsten 2015-3-6

0 个投票

The message is not an error message.
It's just an information that the solution to your differential equation can not be given in explicit form
y(t)=something.
If you want to make a contour plot, specify an initial condition and try "ezplot".
If this does not work, use a numerical ODE integrator (e.g. ODE45).
Best wishes
Torsten.

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Anjana
Anjana
2015-3-6

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Torsten
Torsten
2015-3-6

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