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Launched. April 5, 2009; 15 years ago. ( 2009-04-05) Current status. Active. Prezi is an American video and visual communications software company founded in 2009 in Hungary, with offices in San Francisco, Budapest and Riga as of 2020. [ 1] According to Prezi, in 2021, the software company has more than 100 million users worldwide [ 2] who have ...
A gamma camera ( γ-camera ), also called a scintillation camera or Anger camera, is a device used to image gamma radiation emitting radioisotopes, a technique known as scintigraphy. The applications of scintigraphy include early drug development and nuclear medical imaging to view and analyse images of the human body or the distribution of ...
Calculus, mathematical analysis, statistics, physics. In mathematics, the gamma function (represented by Γ, the capital letter gamma from the Greek alphabet) is one commonly used extension of the factorial function to complex numbers. The gamma function is defined for all complex numbers except the non-positive integers.
Via Photoshop: contact sheet, merge to HDR, PDF presentation, photomerge, Web picture gallery Proprietary: Adobe Lightroom: Library organization, RAW and JPEG editing, slideshow tools, print layout and preferences, web gallery creation and uploading Proprietary: Aperture: Proprietary: CDisplay
Gamma (/ ˈ ɡ æ m ə /; [1] uppercase Γ, lowercase γ; Greek: γάμμα, romanized: gámma) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek , the letter gamma represented a voiced velar stop IPA: [ɡ] .
The gamma distribution is the maximum entropy probability distribution (both with respect to a uniform base measure and a base measure) for a random variable X for which E[X] = kθ = α/β is fixed and greater than zero, and E[ln X] = ψ(k) + ln θ = ψ(α) − ln β is fixed ( ψ is the digamma function ). [1]
Gamma Group is an Anglo-German technology company that sells surveillance software to governments and police forces around the world. The company has been strongly criticised by human rights organisations for selling its FinFisher software to undemocratic regimes such as Egypt and Bahrain . Following the Arab Spring protests in 2011, activists ...
Feynman slash notation. In the study of Dirac fields in quantum field theory, Richard Feynman invented the convenient Feynman slash notation (less commonly known as the Dirac slash notation[ 1] ). If A is a covariant vector (i.e., a 1-form ), where γ are the gamma matrices. Using the Einstein summation notation, the expression is simply.