Trouble solving ODE equation

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Andrew Bickerdike 2021-2-21

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回答： Karan Nandankar 2021-3-1

Im having trouble trying to setup code to solve an ODE when I already have the equation to i(t) and I need to solve to get an equation for P(t).

i(t)=(29/25000)*((sin(pi*t))^13)*(cos((pi*t)-pi/10))

I have all the values for R2 R1 Cv and Lv.

Any help or advice would be very much appreciated.

Thanks.

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Jan 2021-2-21

Okay, now I see the equation for i(t) (maybe I have overseen if before).

Do you need a symbolic solution? Most equations do not have a closed form and numerical methods are needed for an integration.

Did you try to integrate the equation numerically already? Do you have some code?

Andrew Bickerdike 2021-2-21

@Jan

Its true that I need a symbolic solution. And I have not tried to integrate the solution already as I do not know where to start when it comes to even solving something like this in MATLAB.

Thanks again.

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回答（1 个）

Karan Nandankar 2021-3-1

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Hi,

You can initiate solving this ODE by following this documentation from Symbolic Math Toolbox:

https://in.mathworks.com/help/symbolic/solve-a-single-differential-equation.html

Regards,

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MATLAB Mathematics Numerical Integration and Differential Equations Ordinary Differential Equations

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