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Operator

Meanings and phrases

operator

n.

1. (mathematics) a symbol or function representing a mathematical operation
2. an agent that operates some apparatus or machine; manipulator
3. a shrewd or unscrupulous person who knows how to circumvent difficulties; hustler; wheeler dealer
4. someone who owns or operates a business
5. a speculator who trades aggressively on stock or commodity markets

camera operator

n.

1. a photographer who operates a movie camera; cameraman; cinematographer

E.g.

• After graduation he started to work as a camera operator.
• Other credits as camera operator include "Paper Moon" and "New York, New York".
• The Panaglide steadies the camera operator's movement, allowing for a smooth shot.

company operator

n.

1. an operator who works for a company

elevator operator

n.

1. an operator of an elevator

existential operator

n.

1. a logical quantifier of a proposition that asserts the existence of at least one thing for which the proposition is true; existential quantifier

identity operator

n.

1. an operator that leaves unchanged the element on which it operates; identity; identity element

linear operator

n.

1. an operator that obeys the distributive law: A(f+g) = Af + Ag (where f and g are functions)

E.g.

• This defines another bounded linear operator , the adjoint of .
• A linear operator is a map that inputs a ket and outputs a ket.
• In other words, if is a linear operator and is a ket, then is another ket.

newsstand operator

n.

1. someone who sells newspapers; newsagent; newsdealer; newsvendor

operator gene

n.

1. a gene that activates the production of messenger RNA by adjacent structural genes

radio operator

n.

1. someone who operates a radio transmitter

E.g.

• Richardson was a former ham radio operator.
• Before departing, he trained Ruby to be a radio operator.
• Perens is also an amateur radio operator, with call sign K6BP.

sewing-machine operator

n.

1. someone who sews by operating a sewing machine

switchboard operator

n.

1. someone who helps callers get the person they are calling; telephone operator; telephonist

telegraph operator

n.

1. someone who transmits messages by telegraph; telegrapher; telegraphist

E.g.

• Cody then worked as a telegraph operator for the Canadian Pacific Railway.
• Her father worked at a steel mill, while her mother worked as a telegraph operator.
• In the following year, he began work as a telegraph operator for the Canadian Pacific Railway.

telephone operator

n.

1. someone who helps callers get the person they are calling; telephonist; switchboard operator

E.g.

• In 1938 she was hired to work as a telephone operator until her job was no longer needed.
• There is one GSM mobile telephone operator, with coverage of Malabo, Bata, and several mainland cities.
• Mr Asai tries to get one of his employees, telephone operator Ayako Murai (Isuzu Yamada), to meet him for dinner.

network operator

E.g.

• MTV Mobile MTV Mobile was a Netherlands/Italy-based Mobile virtual network operator.
• New World PCS New World PCS Limited ( NWPCS) was a mobile network operator (MNO) of Hong Kong.
• GLO has over 45 million subscribers (December 2018), making it the second largest network operator in Nigeria.

owner and operator

E.g.

• Fraport is the owner and operator of Frankfurt Airport.
• DellaGrotte is the owner and operator of the Sityodtong USA Branch.
• ClubLink is the largest owner and operator of golf courses in Canada.

bus operator

E.g.

• The major bus operator in the Cheshire area is Arriva North West.
• Kelvin Central Buses Kelvin Central Buses was a bus operator in Scotland.
• Richards Brothers Richards Bros Buses () is a bus operator based in Cardigan, Wales.

railway operator

E.g.

• The color tone inside the car varies depending on the railway operator.
• The Esko trains are operated by České dráhy, the state railway operator

tour operator

E.g.

• Selwyns Travel Selwyns Travel is a coach tour operator based in Runcorn, England.
• The house was later sold to tour operator Mario Perillo and was destroyed by fire in 2004.
• Seaview Services Seaview Services is a coach and tour operator operating on the Isle of Wight.

wireless operator

E.g.

• It was operated by wireless operator Jan Szklarczyk "Kod”.
• The wireless operator was corporal Franciszek Dudewicz "Bąk”.
• Thompson served in World War II as a tailgunner and wireless operator in the RAF.

mobile operator

E.g.

• The payments are charged to their mobile phone bills by the mobile operator.
• Warid Pakistan Warid ( ) was a GSM, HSPA+ and LTE based mobile operator in Pakistan.
• In 2000, de Azevedo founded Portugal's third mobile operator, Optimus, starting to manage his own projects.

differential operator

E.g.

• Here, the differential operator formula_32 is defined as formula_33"."
• Euler's notation uses a differential operator formula_53, which is applied to a function formula_18 to give the first derivative formula_55.
• In calculus, an example of a higher-order function is the differential operator formula_1, which returns the derivative of a function formula_2.

largest operator

E.g.

• Delta Air Lines is the largest operator with 77 aircraft.
• The largest operator of the F-15 is the United States Air Force.
• BA was the largest operator of Boeing 747-400s, with 57 in its fleet.

train operator

E.g.

• Both are Ferrovie dello Stato (FS) subsidiaries, once the only train operator in Italy.
• On the New York City Subway and London Underground, the position is now called "train operator" (T/Op).
• The rail line uses a system of lights which display either vertical or horizontal white bars to the train operator.

private operator

E.g.

• In addition, the private operator set up a decentralized and computerized network of payment booths.
• Investments of US$20 million were financed by the private operator over the first ten years of the lease.
• Terminal superstructure will be built by private operator who will also operate and maintain it for 30 years.

private railway operator

E.g.

• Seibu Ikebukuro Line The is a railway line of the Japanese private railway operator Seibu Railway.
• Seibu Kokubunji Line The is a railway line in Tokyo, Japan, operated by the private railway operator Seibu Railway.
• Seibu Tamako Line The is a 9.2 km single-track railway line in Tokyo, Japan, operated by the private railway operator Seibu Railway.

system operator

E.g.

• In 2018, National Express Transit became the system operator.
• A large system operator might own their radio backbone (repeaters).
• Normally, only the system operator would be permitted to use control mode.