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Re: sum accuracy

From Jussi Piitulainen <jussi.piitulainen@helsinki.fi>
Newsgroups comp.lang.python
Subject Re: sum accuracy
Date 2016-04-13 19:57 +0300
Organization A noiseless patient Spider
Message-ID <lf5a8kx4fbd.fsf@ling.helsinki.fi> (permalink)
References <570E78F9.8050409@chamonix.reportlab.co.uk> <mailman.83.1460566278.15650.python-list@python.org>

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Robin Becker writes:

> Does anyone know if sum does anything special to try and improve
> accuracy? My simple tests seem to show it is exactly equivalent to a
> for loop summation.

You want math.fsum.

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sum accuracy Robin Becker <robin@reportlab.com> - 2016-04-13 17:51 +0100
  Re: sum accuracy Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-04-13 19:57 +0300

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