[Patches] [ python-Patches-1741308 ] Fix Decimal.sqrt bugs described in #1725899

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Patches item #1741308, was opened at 2007-06-21 23:54
Message generated for change (Comment added) made by nnorwitz
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Category: Library (Lib)
Group: Python 2.6
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Mark Dickinson (marketdickinson)
>Assigned to: Facundo Batista (facundobatista)
Summary: Fix Decimal.sqrt bugs described in #1725899

Initial Comment:
This patch fixes a number of (yet-to-be-confirmed-as-) bugs in Decimal.sqrt();  see bug report 1725899 for details of these.

As a side benefit the modified version of Decimal.sqrt() runs significantly faster than the original, since it's based on integer arithmetic instead of carrying out Newton's method entirely in decimal;  on my iBook G4 the speedup is between 20 and 25 times with the default precision.

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>Comment By: Neal Norwitz (nnorwitz)
Date: 2007-06-22 00:09

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Facundo, could you take a look?

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You can respond by visiting: 
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