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Female students at Brown University, approximately 45 miles from Tufts, created the women's fraternity Delta Sigma (local) in 1896. [5] Phi Gamma was a women's society established at the University of Maine in February 1897 and was the first sorority on campus. [6] [7] Its original members were Agnes Burnham, Autense Cousens, Susie Davis, Rena ...
Delta-. v. (physics) In general physics, delta-v is a change in velocity. The Greek uppercase letter Δ (delta) is the standard mathematical symbol to represent change in some quantity. Depending on the situation, delta- v can be either a spatial vector (Δ v) or a scalar (Δ v ). In either case it is equal to the acceleration (vector or scalar ...
The nabla symbol. The nabla is a triangular symbol resembling an inverted Greek delta: [1] or ∇. The name comes, by reason of the symbol's shape, from the Hellenistic Greek word νάβλα for a Phoenician harp, [2] [3] and was suggested by the encyclopedist William Robertson Smith in an 1870 letter to Peter Guthrie Tait. [2] [4] [5] [6] [7]
Delta method. In statistics, the delta method is a method of deriving the asymptotic distribution of a random variable. It is applicable when the random variable being considered can be defined as a differentiable function of a random variable which is asymptotically Gaussian .
The Selenga River delta in the Russian republic of Buryatia is the largest delta emptying into a body of fresh water, in its case Lake Baikal. Deltas on Mars. Researchers have found a number of examples of deltas that formed in Martian lakes. Finding deltas is a major sign that Mars once had large amounts of water.
The Delta Symbol - An Origin Story. The Space Force Delta was officially unveiled by the Senior Enlisted Advisor of the Space Force, CMSgt Roger A. Towberman on 22 July 2020, alongside the Space Force's motto Semper Supra, which translates to "Always Above". The delta symbol has a strong historical tradition in the Space Force, being first used ...
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 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.
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