O1

O1 or O-1 may refer to:

Aircraft

O-1 Bird Dog, an observation aircraft manufactured by Cessna

O-1 Falcon, an observation aircraft manufactured by the Curtiss Aircraft Company

O-1 Airship, an Italian manufactured semi-rigid airship operated by the US Navy

Military

NATO Rank O-1

USS O-1 (SS-62), lead ship of the United States O class submarines

HNLMS O 1, a Royal Netherlands Navy O class submarine

Other

O1 type star, a subclass of O-type star

O-1 tool steel, a type of oil-hardening tool steel

O-1 visa

Haplogroup O1 (Y-DNA), a Y-DNA haplogroup

SP&S Class O-1, a steam locomotives class

Otoyol 1, a Turkish highway around Istanbul

Ö1, an Austrian radio station

O1 Communications, Inc., a California telecommunications company

GNR Class O1, a class of British 2-8-0 steam locomotive designed by Nigel Gresley (later redesignated Class O3)

LNER Thompson Class O1, a class of British 2-8-0 steam locomotive designed by Edward Thompson and rebuilt from Class O4

O-1 (airship)

The SCDA O-1 was an Italian semi-rigid airship, the only true semi-rigid airship to serve with the United States Navy.

Operational service

The O-1 was ordered from Stabilimento Costruzioni Dirigibili ed Aerostati (SCDA) by the United States Navy. Its first flight was made at Ciampino, Italy, on 27 March 1919. Following tests, it was sent from Genoa, Italy, leaving on 24 May 1919. It was sent to Akron for study and was then erected at the airship base at Cape May, New Jersey. The O-1 first flew in the USA on 16 September 1919. While operating from Cape May, the O-1 lost all power on a landing approach and was blown to near Pennsville, New Jersey where the crew managed to land it. The O-1 was eventually returned to service and while on temporary duty at Hampton Roads the O-1 was used to launch gliders designed to be anti-aircraft targets. The date the O-1 was scrapped is not known, but was probably in the winter of 1921-22.

Operators

United States Navy

Specifications O-1

Crew: 3

Volume: 127,000 cu ft

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/O-1_(airship)

Big O notation

In mathematics, big O notation describes the limiting behavior of a function when the argument tends towards a particular value or infinity, usually in terms of simpler functions. It is a member of a larger family of notations that is called Landau notation, Bachmann–Landau notation (after Edmund Landau and Paul Bachmann), or asymptotic notation. In computer science, big O notation is used to classify algorithms by how they respond (e.g., in their processing time or working space requirements) to changes in input size. In analytic number theory, it is used to estimate the "error committed" while replacing the asymptotic size, or asymptotic mean size, of an arithmetical function, by the value, or mean value, it takes at a large finite argument. A famous example is the problem of estimating the remainder term in the prime number theorem.

Big O notation characterizes functions according to their growth rates: different functions with the same growth rate may be represented using the same O notation.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Big_O_notation

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