Hi,
Sorry if I was not clear, at t=0, the solution does not exist. As the solver has not solved any step or substep.
If you want your solution to start from t=0, either you will need to export the table and include initial condition manually to plot in excel, or make the first time step small enough that you can neglect the time and assume that result to be at t=0.
Regards,
Harshvardhan Â
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