1Revision history for Perl extension Math::NumberCruncher.
2
35.00 05-Mar-2002 12:29:30 PM
4    - Added the following:
5        sin()
6        cos()
7        sqrt()
8        log()
9        exp()
10        PICONST()
11        Inverse()
12        km2miles()
13        miles2km()
14        CONSTANT()
15        Bernoulli()
16    - Made the following functions available for export: log(), exp(),
17      sqrt(), sin(), cos(), asin(), acos(), atan(), sec(), asec(),
18      csc(), acsc(), exsec(), cot(), acot(), vers(), covers(), hav().
19    - sqrt(), sin(), cos(), log(), and exp() were created and/or modified
20      to serve as drop-in replacements for their respective built-in
21      functions. Usage is the same, with the option of specifying the number
22      of desired decimal places.
23    - Completely overhauled the bulk of the included functions to allow
24      for the user to specify the number of desired decimal places. In
25      some cases, it was not possible to maintain backwards compatability.
26      Please be certain to test your scripts with this version of
27      Math::NumberCruncher thoroughly.
28
294.05 Mon Jan 07 10:13:40 2002
30    - Added acsc()
31    - Added SIS(), which calculates a super-increasing sequence
32    - SIGNIFICANT optimization to Ln(), Exp(), Root2(), ECONST() and
33      related functions, thanks to Douglas Wilson. With his assistance,
34      managed to get a an improvement in ECONST() of 12,592% for less
35      than or equal to 500 decimal places. Seriously. Ln(), et al., showed
36      an improvement in excess of 100%.
37
384.04 Wed Jan 02 12:09:44 2002
39    - Added Ln(), which calculates the natural log of a number
40      to a given number of decimal places.
41    - Added Exp(), which performs the inverse of Ln().
42    - Added Root2(), which calculates the N-th root of a given number
43      using logarithms, rather than Newton's Method, which is what is
44      used in Root(). Root2() allows you to specify the number of decimal
45      places wanted. For particularly large number and/or roots, Root2()
46      is sometimes faster and/or more accurate.
47    - Made significant optimization to Root(). It is now more accurate and
48      substantially faster than v4.03. Thanks to the folks at perlmonks.org
49      for their input on the optimization.
50    - Modified SqrRoot() to use Root(), rather than separate code.
51    - Added PythagTriples() and PythagTriplesSeq().
52    - Special thanks to Douglas Wilson for allowing me to borrow his code
53      for Ln(), Exp(), Root2(), and the various other "behind-the-scenes"
54      functions for same. Douglas's code is based on an algorithm described
55      at http://www.geocities.com/zabrodskyvlada/aat/.
56
574.03 Wed Dec 19 15:44:11 2001
58    - Fixed the Variance() test to allow for slight error tolerance.
59    - Added Root(), which calculates the N-th root of a given number.
60
614.02 Mon Dec 17 11:49:18 2001
62    - Modified all routines that use square roots to use
63      the internal SqrRoot() function whenever possible,
64      and included abs() to account for bad data.
65    - Added complete test suite for all functions.
66
674.0  Wed Nov 21 16:21:43 2001
68    - Added OO interface. Will continue to support
69      funcitonal interface for backward compatibility.
70    - Added the following:
71        Eccentricity()
72        LatusRectum()
73        EllipseArea()
74        OrbitalVelocity()
75        SqrRoot()
76        asin()
77        acos()
78        atan()
79        acot()
80        asec()
81        sec()
82        csc()
83        exsec()
84        tan()
85        cot()
86        vers()
87        covers()
88        hav()
89
903.0  Mon Jul 02 10:41:09 2001
91    - Fixed typo in Range()
92    - Added data verification prior to processing to all routines that
93      got grumpy when insufficient/improper data was passed. (Thanks
94      again to Ronald Blaschke, M.S.)
95    - Added DimensionlessSpeed_2()
96    - Added copyright info
97
982.2  Wed Jun 27 14:54:05 2001
99    - Made minor change to Mean() and Range() to return undef on error.
100      (Thanks to Ronald Blaschke, M.S.)
101    - Added the following:
102        RuleOf72()
103        CylinderVolume()
104        ConeVolume()
105        Deg2Rad()
106        Rad2Deg()
107        C2F()
108        F2C()
109        in2cm()
110        cm2in()
111        ft2m()
112        m2ft()
113        kg2lb()
114        lb2kg()
115        RelativeStride()
116        RelativeStride_2()
117        DimensionlessSpeed()
118        ActualSpeed()
119    - Added value of e out to 200 places.
120
1212.0  Mon Feb 12 11:50:58 2001
122    - Added many new features:
123        TriangleHeron()
124        PolygonPerimeter()
125        Clockwise()
126        InPolygon()
127        InTriangle()
128        BoundingBox_Points()
129        PolygonArea()
130        CircleArea()
131        Circumference()
132        SphereVolume()
133        SphereSurface()
134
1351.3  Sat Nov 25 17:18:44 2000
136    - Corrected error in Difference()
137      (Thanks to Rusty Thomas, Ph.D., for finding the error.)
138
1391.21 Tue Sep 19 08:57:51 2000
140    - Corrected typo in AllOf()
141      (Thanks to Wim Verhaegen for finding the error.)
142
1431.2  Mon Sep 18 13:24:43 2000
144    - Fixed minor error in Range()
145    - Added Predict(), for predicting value of Y, given slope, y-intercept,
146      and proposed x value.
147
1481.1  Wed Aug 30 14:41:52 2000
149    - First public version
150