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Talk:Greek alphabet

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Lattice-constant ... of a set S

In J. W. S. Cassels, An Introduction to the Geometry of Numbers. Berlin: Springer-Verlag (1997) p. VIII, there is the notation but the S is a glyph variant I just can't identify, "for the lattice-constant ... of a set S," the S again being that variant. Alonso del Arte 21:53, 6 November 2010 (UTC)

Group of units

In MathWorld, they use instead of (?) — Daniel Forgues 02:32, 31 December 2010 (UTC)

Personally, I like that better, since mu is indelibly linked in my mind to the Möbius function. However, we should report both usages here. In your opinion, is eta the preferred choice and mu the occasional alternative? Alonso del Arte 03:54, 31 December 2010 (UTC)
I am not yet familiar with the topic (I should look more into it,) so I can't answer for now. I just did a quick search and found that MathWorld uses . Where did you see that they used ? — Daniel Forgues 08:43, 31 December 2010 (UTC)
In Bolker's book (citation provided). In fact, I think it may be the only math text using mu for this purpose. I've seen mu in physics texts but I can't recall what for; most likely not group of units. Alonso del Arte 19:25, 31 December 2010 (UTC)