Changes between Version 18 and Version 19 of WikiStart

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05/13/11 08:34:39 (3 years ago)
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rtoy
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Add some old news

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  • WikiStart

    v18 v19  
    1616== News == 
    1717 
     18Here is brief summary of some recent changeds.  Check the 
     19[http://trac.common-lisp.net/oct/timeline wiki timeline] for more 
     20detailed information of changes. 
     21 
    1822 * 2011-03 
    1923   * Documentation for functions added. 
     
    2125   * Added implementation of theta functions. 
    2226 
    23 Check the [http://trac.common-lisp.net/oct/timeline wiki timeline] for 
    24 more detailed information of changes. 
    25   
     27 * 2011-02-09 
     28   * For Lisp's that support signed zeros for floating point (like 
     29     cmucl and sbcl), Oct now correctly handles signed quad-double 
     30     zeroes. 
     31   * The CVS repository has been moved to Git. The CVS repository is 
     32     still available but will not be updated. Use Git to obtain the 
     33     latest versions. (See Oct gitweb for more links.) 
     34 
     35 * 2007-11-28 
     36   * Oct now passes all of the tests on Allegro/x86. The main change 
     37     was not to compile with safety 0. This messes up Allegro's 
     38     tracking of the precision. 
     39   * To help implementations (like Allegro or Clisp) that use arrays 
     40     for storing %quad-double numbers, many functions now support an 
     41     optional third arg which is where the result should be 
     42     written. This is like how bit-and works. This should work 
     43     correctly with both an array or (complex double-double-float) 
     44     implementation, but perhaps some care is needed to make sure it 
     45     works for both. 
     46   * CMUCL can use either an array or a (complex double-double-float) 
     47     to store a %quad-double. However, simple timing measurements 
     48     indicate that arrays are slightly slower to much slower than 
     49     using (complex double-double-float). 
     50 
     51 * 2007-10-26 
     52   * A Pade approximation for exp has been added. This is currently 
     53     not used, but tests show that it is 25% faster than the current 
     54     method, but it loses about 3 bits of precision. This was 
     55     contributed by Richard Fateman. 
     56 
     57 * 2007-10-15 
     58   * The {{{OCT}}} package has been renamed. The package is now 
     59     {{{NET.COMMON-LISP.OCT}}}, with a nickname of {{{OCT}}}. 
     60   * {{{QD}}} is no longer a nickname for {{{OCT}}}. 
     61   * {{{QUAD-DOUBLE-INTERNAL}}} has been renamed to 
     62     {{{OCT-INTERNAL}}}, with a nickname of {{{OCTI}}}. The old 
     63     nickname {{{QDI}}} has been removed 
     64   * Oct has a more accurate argument reduction for the trig 
     65     functions. This allows Oct to compute {{{cos(2^120)}}} correctly 
     66     (which is about -0.925879). 
     67 
     68 * 2007-10-10 
     69   * Oct now has print/read consistency, thanks to Richard Fateman, 
     70     who provided a very nice method to convert bignums to 
     71     quad-double. 
     72 
    2673== Supported Lisps == 
    2774