'FixedPoint (SPFPM) is a pure-Python module which provides
basic facilities for manipulating fixed-point numbers
of essentially arbitrary precision It aims to be more suitable for simulating
binary fixed-point artihmetic within electronic hardware
(e.g. for digital signal processing (DSP) applications) than the Decimal package,
which is more concerned with fixed-point arithmetic in base-10
SPFPM supports basic arithmetic operations as well as a range
of mathematical functions including sqrt, exp, sin, cos, atan etc.
ChangeLog for Simple Python Fixed-Point Module
19May09 - *** spfpm-0.6.1 released
19May09 - Back-ported overflow test in FXnum constructor from 1.0-branch
11Apr08 - *** spfpm-0.6 released
09Apr08 - added validator in FXfamily to allow limited range of integer-part
07Oct07 - added basic FLOPS calculator to demo.py
27May07 - *** spfpm-0.5 released
26May07 - minor adjustments to ensure test-cases run under Python-2.2
added unit-test for repr()
21May07 - neatened module importing in unit-test routines
23Apr07 - removed use of 'isinstance' from FXfamily & (almost all of) FXnum
11Feb07 - added improved asin()/acos() methods based on 1-cos2t transformations
04Feb07 - removed (deprecated) FPnum wrappers
03Feb07 - *** spfpm-0.4 released
03Feb07 - patched rounding on cast to int/long to match behaviour of float-casts
added unit-test for sqrt() method
expanded set of exception classes, including domain-error etc
added unit-test for asin() & acos() methods
02Feb07 - added demo/test/clean Makefile targets
01Feb07 - added setup.py distutils-script
31Jan07 - added basic asin() & acos() methods
30Jan07 - replaced _rawsincos() method with dual-mode _rawQsine() method
added sin() & cos() methods
29Jan07 - patched spurious family-conversion in __neg__() operator
27Jan07 - extended discusions + examples in documentation
added doctest.testmod() test for documentation
added __abs__, __pos__, __hash__() methods
changed default distribution-format to .zip in place of .tar.gz
22Jan07 - neatened internal usage of truncating division
wired-together __div__ & __truediv__ operators
21Jan07 - *** spfpm-0.3 released
21Jan06 - added backwards-compatibility SetFraction method to FPnum wrapper
renamed arctan() method to atan() to agree with math-module convention
20Jan06 - added unit-test for resolution-conversions
added arctan & _rawarctan() methods
adjusted sincos() method to reduce angles moduli Pi rather than halving
added GetPi() method to FXfamily
adjusted FXfamily to use greater bit-count when finding cached constants
19Jan06 - changed 'FPnum' to 'FXnum' to avoid abbreviation-clash with 'Floating Point'
added FPnum backward-compatibility wrapper
18Jan06 - added unit-test for __str__ method
17Jan06 - converted resolution information to shareable FPfamily object
16Jan06 - added test for __nonzero__ method & patched reference to 'other'
removed __iadd__, __isub__ methods to make immutable object
added unit-test for immutability
15Jan07 - *** spfpm-0.2 released
13Jan07 - added basic Makefile for building release packages
added unit-tests for pow() and sincos() methods
08Jan07 - added logarithm methods
03Jan07 - added basic unit-testing class for arithmetic operations
02Jan07 - converted RCS repository into SVN
26Dec06 - *** prototype of spfpm-0.1 released
## $Revision: 39 $, $Date: 2009-05-19 21:34:56 +0100 (Tue, 19 May 2009) $
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