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In mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, [1] is a generalized function on the real numbers, whose value is zero everywhere except at zero, and whose integral over the entire real line is equal to one.
The delta potential is the potential = (), where δ(x) is the Dirac delta function. It is called a delta potential well if λ is negative, and a delta potential barrier if λ is positive. The delta has been defined to occur at the origin for simplicity; a shift in the delta function's argument does not change any of the following results.
Delta County is a county located in the U.S. state of Texas.As of the 2020 census, its population was 5,230. [1] Its county seat and largest city is Cooper. [2] The county was founded in 1870 and is named for its triangular shape, [3] which resembles the Greek letter delta.
Delta Sigma Theta established Delta Towers in the northeast area of Washington, D.C. Delta Towers is an apartment building for elderly and disabled individuals. [46] Delta Towers was the first retirement center founded by any of the African-American sororities or fraternities in the United States. [ 47 ]
Delta is a situational awareness [1] and battlefield management system developed and used in Ukraine. The system integrates information from a broad network of participants, including troops, civilian officials, and vetted bystanders; [2] and a wide range of streams, [1] including sensors, intelligence sources, surveillance satellites and drones, [2] especially geolocated data, which it maps ...
The Delta rocket family was a versatile range of American rocket-powered expendable launch systems that provided space launch capability in the United States from 1960 to 2024. Japan also launched license-built derivatives (N-I, N-II, and H-I) from 1975 to 1992. More than 300 Delta rockets were launched with a 95% success rate.
Delta Canis Majoris (Latinised from δ Canis Majoris, abbreviated Delta CMa, δ CMa), officially named Wezen / ˈ w iː z ən /, [13] is a star in the constellation of Canis Major.It is a yellow-white F-type supergiant with an apparent magnitude of +1.83.
Terrorist leader Kahlil Kadal has threatened to bomb Miami, Florida unless western influence is removed from the Middle East. In order to keep Kadal from detonating an atomic bomb in Miami, The Delta Force, with new leaders Charlie and Greg, are ordered to team up with a group of Russian Spetsnaz commandos and head to El-Qutar, Kadal's hometown in the fictional country of Sudalia, so they can ...