Difference between revisions of "First Chebyshev function"

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Revision as of 03:12, 29 April 2009

This article is about a function defined on positive reals (and in particular, natural numbers) obtained as the summatory function of an arithmetic function.
View other such summations


Let be a positive real number. The first Chebyshev function of , denoted or , is defined as:


where the sum is only over the prime numbers less than or equal to .

Relation with other counting functions