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Author rhettinger
Recipients mark.dickinson, rhettinger, serhiy.storchaka, tim.peters
Date 2020-08-10.05:00:14
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1597035615.11.0.593280743211.issue41513@roundup.psfhosted.org>
In-reply-to
Content 
Added a revised script for testing accuracy measured in ULPs.  It shows an improvement for all dimensions tested, with the best for 2 dimensions.  Also, the maximum error is now 1 ulp; formerly, it was 2 ulps.

======== 2 dimensions ========
div-by-max:	[(-2.0, 14), (-1.0, 1721), (0.0, 6533), (1.0, 1722), (2.0, 10)]
scaled-by-2:	[(-1.0, 841), (0.0, 8339), (1.0, 820)]

======== 3 dimensions ========
div-by-max:	[(-2.0, 3), (-1.0, 1525), (0.0, 6933), (1.0, 1535), (2.0, 4)]
scaled-by-2:	[(-1.0, 739), (0.0, 8515), (1.0, 746)]

======== 5 dimensions ========
div-by-max:	[(-2.0, 2), (-1.0, 1377), (0.0, 7263), (1.0, 1358)]
scaled-by-2:	[(-1.0, 695), (0.0, 8607), (1.0, 698)]

======== 10 dimensions ========
div-by-max:	[(-2.0, 13), (-1.0, 1520), (0.0, 6873), (1.0, 1580), (2.0, 14)]
scaled-by-2:	[(-1.0, 692), (0.0, 8605), (1.0, 703)]

======== 20 dimensions ========
div-by-max:	[(-1.0, 1285), (0.0, 7310), (1.0, 1405)]
scaled-by-2:	[(-1.0, 555), (0.0, 8822), (1.0, 623)]
History
Date User Action Args
2020-08-10 05:00:15rhettingersetrecipients: + rhettinger, tim.peters, mark.dickinson, serhiy.storchaka
2020-08-10 05:00:15rhettingersetmessageid: <1597035615.11.0.593280743211.issue41513@roundup.psfhosted.org>
2020-08-10 05:00:15rhettingerlinkissue41513 messages
2020-08-10 05:00:14rhettingercreate