PLT Scheme 207 available

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Date: Tue, 18 May 2004 23:07:51 CST

PLT Scheme v207 is now available from

    http://download.plt-scheme.org/

This version adds new collections, while work is going on for v300:

* PLoT is a new collection that provides an interface for drawing
  plots. There is a basic interface for common plot types, as well as
  an advanced one for creating custom types. See the relevant
  help-desk manual for details.

* FrTime (Father Time) is a new language that supports the declarative
  construction of reactive systems through signals (time varying
  values). If this sentence doesn't excite you, just switch to the
  FrTime language and evaluate this variable:
    seconds
  and this expression:
    (build-list (quotient seconds 10) add1)
  and watch.

* A new manual for the web server is available for installation
  through help desk.

* A revised draw.ss teachpack supports functions for dealing with
  clock events and key stroke events. This allows students to write
  animations on day 1. See the revised documentation.

* ProfessorJ:

  - The Full language version of ProfessorJ is released, for
    experimental use. We do not yet support all language features
    (including nested classes, switch, and labeled statements). The
    Beginner language now supports super calls, see the ProfessorJ
    Beginner language manual.

  - ProfessorJ supports a draw.ss-equivalent package now (import
    draw.*;). See the doc.txt file.

  - ProfessorJ now includes two experimental, design-oriented wizards.
    See the Special menu.

* Windows users will be pleased to know that double-clicking a Scheme
  file will re-use an existing DrScheme process rather than starting a
  new one.

Feed-wel-back-come.

-- 
          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                  http://www.barzilay.org/                 Maze is Life!
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