Just posted at Vector
About polynomials Part 2 of Gianluigi Quario's article on the representation and evaluation of polynomials.
Monday, 22 December 2008
Friday, 19 December 2008
Inquisitive computing
Keith Smillie recommends article "Calculemus!" in American Scientist, which develops the concept of "inquisitive computing" and describes what a good language for it would look like.
Guess what…?
Guess what…?
Thursday, 18 December 2008
Quickly correlating Kendall
Just posted at Vector:
Quick Calculation of Kendall’s Rank Correlation Distribution Phew! Gordon Sutcliffe shares a fast way to calculate Kendall’s rank correlation frequency distribution.
Quick Calculation of Kendall’s Rank Correlation Distribution Phew! Gordon Sutcliffe shares a fast way to calculate Kendall’s rank correlation frequency distribution.
Saturday, 13 December 2008
Curve it like Cauchy
Just posted at Vector:
Curve it like Cauchy Bill Jones & Cliff Reiter use some simple J expressions to draw out the implications of Cauchy’s Integral Theorem – and discover startling and lovely shapes.
And a correction: the recent APL2000 conference was in Bethesda, MD, not Baltimore.
Curve it like Cauchy Bill Jones & Cliff Reiter use some simple J expressions to draw out the implications of Cauchy’s Integral Theorem – and discover startling and lovely shapes.
And a correction: the recent APL2000 conference was in Bethesda, MD, not Baltimore.
Friday, 12 December 2008
Just posted at Vector
Posted today:
Washington round-up APL2000 reports on its recent conference
Structured Storage and Monitor Expressions David Liebtag with news of APL2 Service Level 13
YouTube: Morten Kromberg's Unicode chessboard demonstration.
YouTube: John Schole's plea for simple tools
Washington round-up APL2000 reports on its recent conference
Structured Storage and Monitor Expressions David Liebtag with news of APL2 Service Level 13
YouTube: Morten Kromberg's Unicode chessboard demonstration.
YouTube: John Schole's plea for simple tools
Thursday, 11 December 2008
Unicode Support in APL
The end game for character-mapping conflicts? In a new article, Morten Kromberg explains how and why Dyalog embraced Unicode and meets some strange characters on the Basic Multilingual Plane.
Stephen
Stephen
Monday, 8 December 2008
Spice for Beginners
Dan Baronet’s article on the new programmable command line in the Dyalog IDE is online now at http://www.vector.org.uk/?vol=24&no=1&art=baronet
Two events in London: correction
Correction: the IPSA Christmas party will start at 5.30pm not 7pm as first posted.
Thursday, 4 December 2008
Two events in London
Two informal events at the Plumbers Arms in London on Wed 17 Dec:
4pm BAA Humbug
Meeting of the British APL Association London chapter
7pm I.P. Sharp Associates Christmas Party
The Christmas party that will not die, even though the company was sold off over twenty years ago. If you never had the privilege of working for IPSA, you can still touch someone who did. Better yet, buy them a drink.
Plumbers Arms
14 Lower Belgrave Street
London, SW1W 0LN
4pm BAA Humbug
Meeting of the British APL Association London chapter
7pm I.P. Sharp Associates Christmas Party
The Christmas party that will not die, even though the company was sold off over twenty years ago. If you never had the privilege of working for IPSA, you can still touch someone who did. Better yet, buy them a drink.
Plumbers Arms
14 Lower Belgrave Street
London, SW1W 0LN
Tuesday, 2 December 2008
GSE and APL-Germany Fall Meeting, Augsburg
Adrian Smith's report from the GSE and APL-Germany Fall Meeting in
Augsburg is online now.
Augsburg is online now.
Award for APL system
Ziggi Paul’s APL system for The Childcare Company has won the Supplier Innovator of the Year award from Nursery Management Today
Labels:
industry
Tuesday, 25 November 2008
11/30 Party
IBM1130.org has announced this year's "11/30 Party":
http://ibm1130.org/party
http://ibm1130.org/party
Labels:
meeting
Monday, 10 November 2008
Unplugged: BAA London Chapter meeting 21 Nov
2-5pm upstairs at the Edgar Wallace public house, 40 Essex St, London WC2R 3JE. (Free wifi.) RSVP Chris Hogan.
Original invitation follows:
Before its disaffiliation earlier this year the British APL Association (BAPLA) held several "Wiki Working Party" meetings at the British Computer Society. They proved useful not only in adding content to the APL Wiki, but in reviving the spirit of the old British APL User Group (APLUG) workshops. They also brought Ray Cannon's Moots to mind. Amazing how much you can learn when working together.
We've found a possible new venue and in the prototyping style of APL we'd like to give it a try. The Edgar Wallace public house (Google "40 Essex Street, London, WC2R 3JE") has an upstairs room and free Wi-Fi. The room has public access but the landlord will reserve us enough space for however many we say are coming. We'll provide coffee & sandwiches and the landlord will be pleased to supply other refreshments. This might not be a permanent home for such gatherings, but it's a good place to start.
This is not an official move by BAPLA, but perhaps it could be seen as an unofficial London Chapter of BAPLA, unPLUGged?, and if successful might inspire similar meetings at other locations.
We'll be there on 21 November 2008 at about 2.00 pm and we'd like to see lots of you there as well. Bring your laptop, or a USB drive, or just the knowledge in your head.
Please let Chris, Jake or Phil know if you're coming.
Chris Hogan, John Jacob & Phil Last
Original invitation follows:
Before its disaffiliation earlier this year the British APL Association (BAPLA) held several "Wiki Working Party" meetings at the British Computer Society. They proved useful not only in adding content to the APL Wiki, but in reviving the spirit of the old British APL User Group (APLUG) workshops. They also brought Ray Cannon's Moots to mind. Amazing how much you can learn when working together.
We've found a possible new venue and in the prototyping style of APL we'd like to give it a try. The Edgar Wallace public house (Google "40 Essex Street, London, WC2R 3JE") has an upstairs room and free Wi-Fi. The room has public access but the landlord will reserve us enough space for however many we say are coming. We'll provide coffee & sandwiches and the landlord will be pleased to supply other refreshments. This might not be a permanent home for such gatherings, but it's a good place to start.
This is not an official move by BAPLA, but perhaps it could be seen as an unofficial London Chapter of BAPLA, unPLUGged?, and if successful might inspire similar meetings at other locations.
We'll be there on 21 November 2008 at about 2.00 pm and we'd like to see lots of you there as well. Bring your laptop, or a USB drive, or just the knowledge in your head.
Please let Chris, Jake or Phil know if you're coming.
Chris Hogan, John Jacob & Phil Last
Labels:
meeting
Sunday, 2 November 2008
Books page
Graeme Robertson's recently-published textbooks for Dyalog are listed on the new books page at vector.org.uk.
Vector 23:4 in the post
Vector 23:4 is now in the post to subscribers, along with a separately-bound supplement celebrating Dyalog's 25th year.
Thursday, 30 October 2008
APL Germany Fall Meeting
APL Germany has announced its Fall Meeting in Augsburg, Germany on 24-25 November.
Invitation at www.vector.org.uk/content/augsburg.pdf
Invitation at www.vector.org.uk/content/augsburg.pdf
Report on Dyalog 2008 user meeting
Adrian Smith’s report of the Dyalog 2008 user meeting in Elsinore the week before last will appear at the end of the year in Vector 24:1. It is online now at
www.vector.org.uk/archive/v241/conf.htm
Despite the turmoil in financial services, where so many of our applications run, the meeting saw record numbers of delegates.
Overheard at the meeting:
To follow soon: reports from the APL2000 conference in Baltimore and (I hope) the APL Germany meeting in Augsburg, both next month.
www.vector.org.uk/archive/v241/conf.htm
Despite the turmoil in financial services, where so many of our applications run, the meeting saw record numbers of delegates.
Overheard at the meeting:
This is the first conference where I raised the average age instead of lowering it.Not just the age distribution got flattened. There was a more even balance between the sexes than I have ever seen at an APL conference, as Adrian took care to show in his pictures.
To follow soon: reports from the APL2000 conference in Baltimore and (I hope) the APL Germany meeting in Augsburg, both next month.
Thursday, 2 October 2008
Vector 23:4 gone to press
Individual articles are available from the front page, or you can download the whole issue as a PDF.
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