logarithmic integral

GPTKB entity

Statements (21)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:alsoKnownAs li(x)
gptkbp:antiderivativeOf 1 / log x
gptkbp:asymptoticTo π(x) (prime counting function)
gptkbp:complexExtension yes
gptkbp:defines li(x) = ∫₂ˣ dt / log t
gptkbp:domain real numbers greater than 0, x ≠ 1
gptkbp:generalizes offset logarithmic integral (Li(x))
gptkbp:hasSeriesExpansion yes
gptkbp:relatedTo logarithm
exponential integral
gptkbp:singularity x = 1
gptkbp:studiedBy gptkb:Carl_Friedrich_Gauss
gptkb:Adrien-Marie_Legendre
gptkbp:usedFor estimating the number of primes less than x
gptkbp:usedIn gptkb:prime_number_theorem
number theory
gptkbp:valueAt2 0
gptkbp:bfsParent gptkb:prime_number_theorem
gptkbp:bfsLayer 7
https://www.w3.org/2000/01/rdf-schema#label logarithmic integral