回复： more math related questions
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回复： more math related questions
 
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Re: more math related questions
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Hello. Thanks a lot for trying to help!
May I ask about calculating (Q1)^2:
If using polar coordinates, then how to transform the square-shaped
integral region? Thanks!
By the way, I have checked in some math manual that, my question is close
to the Goodwin-Staton integral (1948); however, the integral region is
different.
Note:
The related research project is almost completed. But I believe the
project organizer will certainly be happy to know if any even better
result.
 Hong Yu
From: [hidden email]
Sent: Thursday, August 25, 2011 1:32 PM
To: [hidden email] ; [hidden email]
Cc: [hidden email]
Subject: 回复： [Quantlib-users] more math related
questions one hint: calculate square of Q1 first, use polar transformation, x = r
cos(theta), y = r sin(theta)
------------------
原始邮件 ------------------
发件人: "Hong Yu"
发送时间: 2011年8月10日(星期三) 晚上9:30
收件人: "luigi.ballabio"
抄送: "quantlib-users"
主题: Re: [Quantlib-users] more math related questions Hello. May I ask how to calculate analytically the integral in the attached image? Thanks! Regards, Hong Yu -----Original Message----- From: Hong Yu Sent: Monday, August 08, 2011 3:31 PM To: [hidden email] Cc: [hidden email] Subject: Re: [Quantlib-users] more math related questions Thanks for your interest! I have been doing for a friend on econometrics related exponential integral calculation and run into a question. Three hours ago I got suggestions from other graduate students. So I will try further till further questions, then post here. By the way, I am also interested to know if anyone will recommend some open-source software on symbolic math calculation, e.g., helping to derive analytical result of exponential integrals? Thanks. Regards, Hong Yu -----Original Message----- From: Luigi Ballabio Sent: Monday, August 08, 2011 3:21 PM To: Hong Yu Cc: [hidden email] Subject: Re: [Quantlib-users] more math related questions On Mon, 2011-08-08 at 12:19 +0800, Hong Yu wrote: > > Hello. Due to memory-RAM compatibility issue, my new workstation is > now in its local brand maintenance center. So I can’t work on code > related things for couple days. However, is it appropriate to ask > some math related questions in the QuantLib’s mailing lists? Go ahead. Luigi -- When all else fails, pour a pint of Guinness in the gas tank, advance the spark 20 degrees, cry "God Save the Queen!", and pull the starter knob. -- MG "Series MGA" Workshop Manual ------------------------------------------------------------------------------ BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA The must-attend event for mobile developers. Connect with experts. Get tools for creating Super Apps. See the latest technologies. Sessions, hands-on labs, demos & much more. Register early & save! http://p.sf.net/sfu/rim-blackberry-1 _______________________________________________ QuantLib-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/quantlib-users ------------------------------------------------------------------------------ EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev _______________________________________________ QuantLib-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/quantlib-users |
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