Re: [Hampshire] Python multiplicaton
Hugo Mills wrote: Another alternative would be to use the decimal module[1] for all your numbers. Hugo. [1] http://docs.python.org/library/decimal.html That works perfectly for me - thanks As a side note to this, I'm involved in a construction planning application - it planned the new Hong Kong airport. The competing apps use standard IEEE floating point. Our app uses 128 bit integers and an implied binary point. This is sometimes called fixed point arithmetic. When you put a pile into the ground, the top of the pile is rough and not suitable for immediate construction. Consequently, the piles are capped to form a smoother surface. In estimating the cost of the concrete for the capping, the difference between the integer calculation and the floating-point calculation was US$10,000,000. The integer calculation was right. Floating point is always an approximation. Under some conditions it can lead you into an awful mess. There's a paper by Goldberg that is a good reference http://docs.sun.com/source/806-3568/ncg_goldberg.html Stephen -- Stephen Pelc, step...@mpeforth.com MicroProcessor Engineering Ltd - More Real, Less Time 133 Hill Lane, Southampton SO15 5AF, England tel: +44 (0)23 8063 1441, fax: +44 (0)23 8033 9691 web: http://www.mpeforth.com - free VFX Forth downloads -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --
Re: [Hampshire] 06 February at IBM Hursley
Adam Trickett wrote: We have again been invited to IBM and so our next meeting on the 6th of February will be at IBM Hursley Labs. As with last time entrance and exit times will be less flexible than a Southampton meeting but I hope this is offset by the excellent meeting that will take place there and everyone will want to be there from start to finish anyway Are talks practical? I'd like to offer a 15-20 minute talk, with or without a projector, about my new ebook Walking With the Elephants. Damian -- w: http://www.diaser.org.uk - Open Source Data Vault Application - beta-1 w: http://www.walkingwiththeelephants.co.uk ebook about small scale OSS collaborative development f: http://sourceforge.net/export/rss2_projnews.php?group_id=258272 b: http://interlinux.co.uk/wordpress -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --
Re: [Hampshire] 06 February at IBM Hursley
2010/1/21 Damian Brasher l...@interlinux.co.uk: Adam Trickett wrote: We have again been invited to IBM and so our next meeting on the 6th of February will be at IBM Hursley Labs. As with last time entrance and exit times will be less flexible than a Southampton meeting but I hope this is offset by the excellent meeting that will take place there and everyone will want to be there from start to finish anyway Are talks practical? I'd like to offer a 15-20 minute talk, with or without a projector, about my new ebook Walking With the Elephants. Absolutely! We have an auditorium with an enormous projector and wireless microphones! Shall I put you down for this talk? (can you remind me again what the book is about?) Anton -- Anton Piatek email: an...@piatek.co.uk blog/photos:http://www.strangeparty.com pgp: [74B1FA37] (http://www.strangeparty.com/anton.asc) fingerprint: 7401 96D3 E037 2F8F 5965 A358 4046 71FD 74B1 FA37 No trees were destroyed in the sending of this message, however, a significant number of electrons were terribly inconvenienced. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --
Re: [Hampshire] 06 February at IBM Hursley
Anton Piatek wrote:
Absolutely! We have an auditorium with an enormous projector and
wireless microphones!
Super, I will use a projector. This will make a nice change from being a BaB
meeting facilitator.
Shall I put you down for this talk? (can you remind me again what the
book is about?)
Yes.
ebook excerpt: This ebook is designed to help you gain some deeper insight
into a small scale, technical Open Source software development collaboration.
Perhaps you, the reader, have started, or are part way through, a project; or
you are a manager or investor wanting to dig a little deeper into the inner
workings of Open Source software development. As the designer, developer and
author of a project I recently completed a stage of collaboration that took
the software from a prototype to a beta-1 evaluation product. Ill be talking
you through the stages of development from initial conception to beta-1.
Damian
[Oh yes! also need to remind HLUG members that a free copy is available in
return for a short review, anywhere between 4 - about 60 words. If you do,
please do blog your review if you want to, I may not use your review or may
edit the review for brevity. I won't chase you for a response so simply
delete the ebook or forward to a friend to review if you don't like it or
don't have time. The offer is open indefinitely.]
email: feedback {...@} walkingwiththeelephants {.} co {.} uk for a free copy.
Damian
--
w: http://www.walkingwiththeelephants.co.uk ebook about small scale OSS
collaborative development
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Re: [Hampshire] [OT] ebook review free offer - re-post
[Re-post to clarify a request I posted earlier, based on some feedback.] A free copy of my new ebook Walking With the Elephants is available in return for a short review, anywhere between 4 - about 60 words. If you do, please do blog your review if you want to, I may not use your review or may edit the review for brevity. I won't chase you for a response so simply delete the ebook or forward to a friend to review if you don't like it or don't have time. The offer is open indefinitely. Best Regards Damian w: http://www.walkingwiththeelephants.co.uk ebook about small scale OSS Excerpt: This ebook is designed to help you gain some deeper insight into a small scale, technical Open Source software development collaboration. Perhaps you, the reader, have started, or are part way through, a project; or you are a manager or investor wanting to dig a little deeper into the inner workings of Open Source software development. As the designer, developer and author of a project I recently completed a stage of collaboration that took the software from a prototype to a beta-1 evaluation product. Ill be talking you through the stages of development from initial conception to beta-1. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --
Re: [Hampshire] [OT] data.gov.uk
Sean Gibbins wrote: Browsing the BBC's tech news today I spotted this article: http://news.bbc.co.uk/1/hi/technology/8470797.stm Reading past the bit about Sir Tim Berners-Lee's involvement, I notice a Southampton Uni professor - Professor Nigel Shadbolt - was involved too. Not just the boys at ECS; Dame Wendy Hall is working on some heavy duty work exploring the interface between the life sciences and the physical sciences. http://users.ecs.soton.ac.uk/wh/ Damian -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --
