Offset logarithmic integral
The offset logarithmic integral is a non-elementary function Li(x) very similar to the logarithmic integral function li(x), defined such that:
- Li(x) = li(x) - li(2).
Explicitly, this means
- <math> {\rm Li} (x) = \int_{2}^{x} \frac{dt}{\ln (t)} \; . </math>
It is often used in formulations of the prime number theorem.
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four years. The season of operas of a lighter character than those given
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disastrous failure for reasons which are not to be discussed here, but
led to the abandonment of the New Theater to the same uses to which the
form, it being premised that apparent discrepancies between the number
fact that frequently two, and sometimes three, works were brought
came to be very numerous in the last month, when it was found that
attractive power than any opera or combination of singers:
"Otello" ...................... November 17 ......... 6
"Madama Butterfly" ............ November 19 ......... 6
"La Bohème" ................... November 20 ......... 6
* "Cavalleria Rusticana" ...... November 24 ......... 7
"Il Trovatore" ................ November 25 ......... 6
"Aïda" ........................ December 3 .......... 6
"Manon" ....................... December 6 .......... 3
"Orfeo ed Eurydice" ........... December 23.
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