Logarithmic integral function
Special function defined by an integral / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Logarithmic integral function?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
"Li(x)" redirects here. For the polylogarithm denoted by Lis(z), see Polylogarithm.
In mathematics, the logarithmic integral function or integral logarithm li(x) is a special function. It is relevant in problems of physics and has number theoretic significance. In particular, according to the prime number theorem, it is a very good approximation to the prime-counting function, which is defined as the number of prime numbers less than or equal to a given value .