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e. In statistics, an expectation–maximization ( EM) algorithm is an iterative method to find (local) maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models, where the model depends on unobserved latent variables. [ 1] The EM iteration alternates between performing an expectation (E) step, which creates ...
Hang 'Em High is a 1968 American revisionist Western film directed by Ted Post and written by Leonard Freeman and Mel Goldberg. It stars Clint Eastwood as Jed Cooper, an innocent man who survives a lynching; Inger Stevens as a widow who helps him; Ed Begley as the leader of the gang that lynched Cooper; and Pat Hingle as the federal judge who hires him as a Deputy U.S. Marshal.
The quantization of the electromagnetic field is a procedure in physics turning Maxwell's classical electromagnetic waves into particles called photons. Photons are massless particles of definite energy, definite momentum, and definite spin . To explain the photoelectric effect, Albert Einstein assumed heuristically in 1905 that an ...
"Hang 'Em High" is a musical theme composed by Dominic Frontiere for the soundtrack of the 1968 film of the same name. Though it was first covered by Hugo Montenegro , whose orchestra recorded a full album of music from the film, the tune became a hit in an R&B instrumental version by Booker T. & the M.G.'s that charted #9 Pop and #35 R&B. [ 1 ]
Comparison of EM simulation software. The following table lists software packages with their own article on Wikipedia that are nominal EM (electromagnetic) simulators; Antenna modeling, especially in Amateur Radio. Widely used as the basis for many GUI-based programs on many platforms. Version 2 is open source, but Versions 3 and 4 are ...
Electromagnetism. In physics, electromagnetic radiation ( EMR) consists of waves of the electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic radiant energy. [ 1] Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronized oscillations of electric and magnetic fields.
Electromagnetic mass. Electromagnetic mass was initially a concept of classical mechanics, denoting as to how much the electromagnetic field, or the self-energy, is contributing to the mass of charged particles. It was first derived by J. J. Thomson in 1881 and was for some time also considered as a dynamical explanation of inertial mass per se.
Continuous charge distribution. The volume charge density ρ is the amount of charge per unit volume (cube), surface charge density σ is amount per unit surface area (circle) with outward unit normal n̂, d is the dipole moment between two point charges, the volume density of these is the polarization density P.