static void Main(string[] args)
{
// var modelConfig = Examples.Normal1();
var modelConfig = Examples.BlackScholes1();
Func <double, double> p_upper = x0 => { return(.0); };
Func <double, double> p_lower = x0 => { return(.0); };
var fokkerPlanck = new FokkerPlanck(modelConfig, p_upper, p_lower);
var p = fokkerPlanck.Solve();
Helpers.WriteToFile(p, String.Format("density_{0}.csv", modelConfig.Name), fokkerPlanck.T, fokkerPlanck.X);
}