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A+Visualize Context (requires Java Plug-in)
CREATED BY chris • LAST EDITED BY chris 4504 days AGO
A and A+ are the predecessors of K.

"A is best described as a reduced instruction set APL. It was designed and developed by Arthur Whitney around 10 years ago [in 2001] as a super-fast engine for manipulating timeseries data. It was subsequently developed as A+ by Morgan Stanley and has now been placed into the public domain under the GNU public licence."

The + in A+ signifies the addition of a high-performance GUI component:

"Incredibly, Morgan Stanley wrote a replacement for Motif in 3 months, which can be directly accessed from A. [...]. There is only one copy in memory of the data on screen, and nothing has to be swapped backwards and forwards between the Windows and A+. We were given a staggering demonstration of a window displaying a huge matrix, I cannot remember now if it was 10 million or 1000 million integers. Scrolling around this monster and popping in changes was just as quick as looking at a tiny matrix."

www.aplusdev.org
A+ as compared to K


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BACKLINKS
  2002-02-15-aPlusWindows
  2003-02-16-aplusAscii
  2003-06-06-rbfA+
  2003-09-20-finfor
  2004-10-21-kennethIverson
  2005-01-23-strim
  2005-08-26-arraybert
  2005-12-28-wallHit
  adap
  Arthur Whitney
  code-to-study
  Erik T. Mueller
  vector-languages


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