- 
          1.5.9 - 13/5/2013: Incorporated into Boost.Math.
        
- 
          1.5.8 - 17/12/2005: Converted documentation to Quickbook Format.
        
- 
          1.5.7 - 24/02/2003: transitionned to the unit test framework; <boost/config.hpp>
          now included by the library header (rather than the test files).
        
- 
          1.5.6 - 15/10/2002: Gcc2.95.x and stlport on linux compatibility by Alkis
          Evlogimenos (alkis@routescience.com).
        
- 
          1.5.5 - 27/09/2002: Microsoft VCPP 7 compatibility, by Michael Stevens
          (michael@acfr.usyd.edu.au); requires the /Za compiler option.
        
- 
          1.5.4 - 19/09/2002: fixed problem with multiple inclusion (in different
          translation units); attempt at an improved compatibility with Microsoft
          compilers, by Michael Stevens (michael@acfr.usyd.edu.au) and Fredrik Blomqvist;
          other compatibility fixes.
        
- 
          1.5.3 - 01/02/2002: bugfix and Gcc 2.95.3 compatibility by Douglas Gregor
          (gregod@cs.rpi.edu).
        
- 
          1.5.2 - 07/07/2001: introduced namespace math.
        
- 
          1.5.1 - 07/06/2001: (end of Boost review) now includes <boost/math/special_functions/sinc.hpp>
          and <boost/math/special_functions/sinhc.hpp> instead of <boost/special_functions.hpp>;
          corrected bug in sin (Daryle Walker); removed check for self-assignment
          (Gary Powel); made converting functions explicit (Gary Powel); added overflow
          guards for division operators and abs (Peter Schmitteckert); added sup
          and l1; used Vesa Karvonen's CPP metaprograming technique to simplify code.
        
- 
          1.5.0 - 26/03/2001: boostification, inlining of all operators except input,
          output and pow, fixed exception safety of some members (template version)
          and output operator, added spherical, semipolar, multipolar, cylindrospherical
          and cylindrical.
        
- 
          1.4.0 - 09/01/2001: added tan and tanh.
        
- 
          1.3.1 - 08/01/2001: cosmetic fixes.
        
- 
          1.3.0 - 12/07/2000: pow now uses Maarten Hilferink's (mhilferink@tip.nl)
          algorithm.
        
- 
          1.2.0 - 25/05/2000: fixed the division operators and output; changed many
          signatures.
        
- 
          1.1.0 - 23/05/2000: changed sinc into sinc_pi; added sin, cos, sinh, cosh.
        
- 
          1.0.0 - 10/08/1999: first public version.