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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 .
deltadental .com. The Delta Dental Plans Association, also known as simply Delta Dental, is an American network of dental insurance companies composed of 39 independent Delta Dental members operating in all 50 states, the District of Columbia and Puerto Rico. These member companies provide coverage to 85 million people, enrolled in over 157,000 ...
The Niger Delta is the delta of the Niger River sitting directly on the Gulf of Guinea on the Atlantic Ocean in Nigeria. [1] [2] It is located within nine coastal southern Nigerian states, which include: all six states from the South South geopolitical zone, one state ( Ondo ) from South West geopolitical zone and two states ( Abia and Imo ...
Kronecker delta. In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually just non-negative integers. The function is 1 if the variables are equal, and 0 otherwise: or with use of Iverson brackets : For example, because , whereas because . The Kronecker delta appears naturally in many areas of ...
Delta-v (more known as " change in velocity "), symbolized as and pronounced deltah-vee, as used in spacecraft flight dynamics, is a measure of the impulse per unit of spacecraft mass that is needed to perform a maneuver such as launching from or landing on a planet or moon, or an in-space orbital maneuver. It is a scalar that has the units of ...
Mathematics. Δ, a difference of state between two before and after state schemas in the Z notation. δ {\displaystyle \delta } , the first Feigenbaum constant. Delta connective, a unary connective in t-norm fuzzy logics. Delta method for approximating the distribution of a function.
Truly. Delta Zeta ( ΔΖ, also known as DZ) is an international college sorority founded on October 24, 1902, at Miami University in Oxford, Ohio . Delta Zeta has 170 collegiate chapters in the United States and Canada, and over 200 alumnae chapters in Canada, the United Kingdom, and the United States. As of 2013, there are over 244,400 college ...
Delta blues. Delta blues is one of the earliest-known styles of blues. It originated in the Mississippi Delta and is regarded as a regional variant of country blues. Guitar and harmonica are its dominant instruments; slide guitar is a hallmark of the style. Vocal styles in Delta blues range from introspective and soulful to passionate and fiery.