How to solve differential equations in c++ using backward differenciation forumula method. How to convert matlab code into c++. Is there any solvers ?

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Michał Marszal

You can try GSL (GNU Scientific Library), which has a BDF solver implementation. In order to convert matlab code into C/C++ you need to have Matlab Coder extension.

Chaithanya Chaithu

i have matlab coder , but it is giving so many files after execution. If i execute the same file in c++ its not working

I don't know what is the complexity of the problem you want to solve, but how about rewriting your set of ODE GSL. It's not a big deal. You just have to give the equations, and in case of some solvers the Jacobian of the system.

How to implement BDF method in c++ , without using library also can we write the code?

There are books on the solvers algorithms (ex. Numerical Recipies in C), or you can have a look on how it is implemented in GSL. The question is do you really need to write your own implementation of BDF solver? In most of the cases it is like reinventing wheel, unless you have a very specific system of ODE to solve.

I tried to solve those differential equations using mathematical methods , but it is giving nan values in the output , i tried to use c++ odeint library but graphs are not matching with my matlab values.