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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 .
Delta Kappa Epsilon (ΔΚΕ), commonly known as DKE or Deke, is one of the oldest fraternities in the United States, with fifty-six active chapters and five active colonies across North America. It was founded at Yale College in 1844 by fifteen sophomores who were discontented with the existing fraternity order on campus.
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 ...
D. Delta Air Lines Flight 318. Delta Air Lines Flight 705. Delta Air Lines Flight 1080. Categories: Accidents and incidents by airline of the United States. Delta Air Lines.
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 atracotoxin (δ-ACTX-Ar1, robustoxin, or robustotoxin) is a low-molecular-weight neurotoxic polypeptide found in the venom of the Sydney funnel-web spider (Atrax robustus). Delta atracotoxin produces potentially fatal neurotoxic symptoms in primates , by slowing the inactivation of sodium ion channels in autonomic and motor neurons .
This is a list of launches made by the PGM-17 Thor IRBM, and its derivatives, including the Delta family and the Japanese N-I, N-II and H-I rockets which were based on license-produced components. Due to the number of launches, it has been split by decade: List of Thor and Delta launches (1957–1959) List of Thor and Delta launches (1960 ...
t. e. 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. [2] [3] [4] Since there is no function having this property, modelling the ...