NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Precise index correction: was- Eye problems and IE, IC
From: Alexandre Eremenko
Date: 2006 Jul 14, 06:03 -0500
Bill,
Sigma as a sum of the series is the capital (upper case)
sigma, and sigma as a variance is a small (lower case)
sigma, so there will be no confusion on this list,
even if sometimes we will discuss series, which is unlikely:-)
(Lower case sigma looks somewhat similar to number 6).
> Therefore I am confused. Is sigma always used as the
> square root of the variance, or only in a statistical context?
It is a standard notation is probability and statistics.
Alex.
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To , send email to NavList-@fer3.com
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From: Alexandre Eremenko
Date: 2006 Jul 14, 06:03 -0500
Bill,
Sigma as a sum of the series is the capital (upper case)
sigma, and sigma as a variance is a small (lower case)
sigma, so there will be no confusion on this list,
even if sometimes we will discuss series, which is unlikely:-)
(Lower case sigma looks somewhat similar to number 6).
> Therefore I am confused. Is sigma always used as the
> square root of the variance, or only in a statistical context?
It is a standard notation is probability and statistics.
Alex.
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---
