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You are not logged in. #51 20130305 06:09:41
Re: Kummer and a tough integral.Yes, it does. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #52 20130305 06:14:20
Re: Kummer and a tough integral.Hmmm? Change that exp(x) to sqrt(x) and change f(0,50 ) to f(0,1) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #53 20130305 06:19:48
Re: Kummer and a tough integral.It says "Romberg failed to converge". The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #54 20130305 06:21:27
Re: Kummer and a tough integral.Try adjusting rombergtol: 1.e3 In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #55 20130305 06:22:55
Re: Kummer and a tough integral.It is working and giving out: 0.66653268137515 The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #56 20130305 06:28:03
Re: Kummer and a tough integral.There should be a global variable called rombergit. What is its value? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #57 20130305 06:33:06
Re: Kummer and a tough integral.It is 11. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #58 20130305 06:35:18
Re: Kummer and a tough integral.Set it 25. and rombergtol: 1.e6, what happens? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #59 20130305 07:03:18
Re: Kummer and a tough integral.I get 0.66666657420034. Last edited by anonimnystefy (20130305 07:06:28) The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #60 20130305 07:08:59
Re: Kummer and a tough integral.Here is more: In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #61 20130403 06:41:27
Re: Kummer and a tough integral.Hi bobbym The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #62 20130403 06:43:06
Re: Kummer and a tough integral.Easy, use WorkingPrecision> some number. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #63 20130403 06:51:05
Re: Kummer and a tough integral.Ah, there it is. I found the AccuracyGoal and PrecisionGoal, but they didn't help. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #64 20130403 06:55:58
Re: Kummer and a tough integral.WorkingPrecision did not work? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #65 20130403 07:00:23
Re: Kummer and a tough integral.It is working. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #66 20130403 07:00:48
Re: Kummer and a tough integral.The answer to d) i) is in the other thread. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 