List of changes

----------------------- VERSION 2 -----------------------------------

HPL 2.0 (03-NOV-2011)

- Adapted for Mathematica 8

HPL 2.0 (28-SEP-2010)

- Corrected a bug for MZV of weight 6 and higher with two or more negative arguments. (Thanks to V. Smirnov for pointing this bug)

HPL 2.0 (06-OCT-2008)

- Corrected a bug in HPLInt (1/(1-x) or 1/(1+x) were not recognized if alone).

HPL 2.0 (06-DEC-2007)

- Adaptation for Series around argument x=1 in Mathematica 6.

HPL 2.0 (17-AUG-2007)

- small internal changes for HypExp 2
- installation script for mac

HPL 2.0 (15-JUN-2007)


- bug in HPLLogExtract corrected (factorization of the HPL[{0},x] in HPLs with more that one trailing 0 was correct, but not complete)
- bug in Series of HPLs with +- weights and 0s corrected. (the result displayed some Indeterminate which should not be there)
- bug in the numerical evaluation for precision larger than the MachinePrecision (internal object appeared in some cases)
- Help for HPLArgTransform corrected (in transformation list x->Sqrt[x])

HPL 2.0 (08-JUN-2007)

- bug in the numerical evaluation on the real axis for x < -1 and trailing 0s fixed
- small internal changes for the use with HypExp II

HPL 2.0 (05-MAR-2007)

Main changes:

- Numerical evaluation for the whole complex plane
- New weights plus and minus
- New function HPLArgTransform
- New function HPLInt

For more details: 
hep-ph/0703052


----------------------- VERSION 1 -----------------------------------

HPL 1.1 (23-FEB-2006)

- Bug in the transformation of argument 1-1/t with HPLConvertToSimplerArgument corrected.

HPL 1.1 (25-NOV-2005)


- Bug in the numerical evaluation of MZV (a few MZV of weight 8 were not evaluated precisely enough)
- Bug in the treatement of the symbolic divergent quantity HPL[1,1] for weight higher than the loaded tables corrected. The leading divergent term was right, subleading not.
- Bug in the library h8tables.mat. The symbols s6,s7a and s7b were called HPLs6,HPLs7a and HPLs7b, so that the numerical evaluation was not possible. 

HPL 1.1 (25-OCT-2005)


- minor Bug in HPLAnalyticContinuation removed (HPLAnalyticContinuation for numerical argument of infinite precision without specification of region didn't worked)

HPL 1.1 (13-SEPT-2005)


- Better numerics:
    - faster for arguments near 1 (>0.95)
&Nbsp;   - precision under control (all digits displayed can be trusted, if the argument of the HPL is a number with infinite precision)
- Faster change of variables  x - > t/(t-1), x -> (1-t)/(1+t), x -> 1/t
- Bug in HPLReduceToMinimalSet removed (it didn't project all HPL's to the minimal set).
   If you downloaded the files MinimalSet7.mat or MinimalSet8.mat before version 1.1, please  replace the old files by the new ones.
- Faster HPLProductExpansion

HPL 1.0 (13-JULY-2005)

--- last update: 3 November 2011