Imam Tantowi

Thanks for your answer sir. Actually, I am newbie for using udf. I dont understand about what's the problem make crash happen. I have check the thread index, and I think it is OK. So, I write the message to detect this code, and yes this UDF is the main problem that make floating point. When starting to run the calculation, the program try to compute again and again, but divergen. I have no idea to solve this. I really dont know.
Do DrAmine have some suggestion to me for solving this problem?