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Delta ( / ˈdɛltə /; [1] uppercase Δ, lowercase δ; Greek: δέλτα, délta, [ˈðelta]) [2] is the fourth letter of the Greek alphabet. In the system of Greek numerals it has a value of 4. It was derived from the Phoenician letter dalet 𐤃. [3] Letters that come from delta include Latin D and Cyrillic Д .
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.
Delta Air Lines is one of the major airlines of the United States and a legacy carrier headquartered in Atlanta, Georgia. [1] The United States' oldest operating airline and the seventh-oldest operating worldwide, [7] Delta along with its subsidiaries and regional affiliates, including Delta Connection, operates over 5,400 flights daily and serves 325 destinations in 52 countries on six ...
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The symbol in Americanist phonetic notation for the voiceless alveolar lateral fricative is the Greek letter lambda λ , but ɬ in the IPA. The IPA symbol for the palatal lateral approximant is ʎ , which looks similar to lambda, but is actually an inverted lowercase y .
Delta Air Lines is a major United States airline based in Atlanta, Georgia.As of December 31, 2021, Delta's mainline aircraft fly to 242 destinations, serving 52 countries across six continents.
The character ∂ ( Unicode: U+2202) is a stylized cursive d mainly used as a mathematical symbol, usually to denote a partial derivative such as (read as "the partial derivative of z with respect to x "). [1] [2] It is also used for boundary of a set, the boundary operator in a chain complex, and the conjugate of the Dolbeault operator on ...