# Difference between revisions of "Talk:Euler's totient function"

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Some motivation and derivation of the formula would make this article more useful.--[[User:MCrawford|MCrawford]] 13:18, 20 June 2006 (EDT) | Some motivation and derivation of the formula would make this article more useful.--[[User:MCrawford|MCrawford]] 13:18, 20 June 2006 (EDT) | ||

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+ | I changed the part under "Notation". It surely is not best as it is now, but the old one was surely wrong: | ||

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+ | - <math>\phi</math> is _not_ a capital letter "Phi", but still a lower case character; compare: <math>\Phi</math> to <math>\phi</math>. | ||

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+ | - <math>\varphi</math> is about as widely spread as <math>\phi</math>, e.g. the normal Wikipedia and more than half of my books prefer <math>\varphi</math>. | ||

+ | --[[User:ZetaX|ZetaX]] 10:58, 30 January 2008 (EST) |

## Revision as of 10:58, 30 January 2008

Some motivation and derivation of the formula would make this article more useful.--MCrawford 13:18, 20 June 2006 (EDT)

I changed the part under "Notation". It surely is not best as it is now, but the old one was surely wrong:

- is _not_ a capital letter "Phi", but still a lower case character; compare: to .

- is about as widely spread as , e.g. the normal Wikipedia and more than half of my books prefer . --ZetaX 10:58, 30 January 2008 (EST)