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Eureqa worked by creating random equations with the data through evolutionary search. [5] Initial guesses might not fit the data well but some of the equations will fit better than others and those will be used as the basis for the next round of guesses until the fit cannot be further improved.
A formula editor is a computer program that is used to typeset mathematical formulas and mathematical expressions. Formula editors typically serve two purposes: They allow word processing and publication of technical content either for print publication, or to generate raster images for web pages or screen presentations.
acslX is a software application for modeling and evaluating the performance of continuous systems described by time-dependent, nonlinear differential equations. ADMB is a software suite for non-linear statistical modeling based on C++ which uses automatic differentiation.
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Animation showing curve adaptation as the ratio a / b increases from 0 to 1. The animation shows the curve adaptation with continuously increasing a / b fraction from 0 to 1 in steps of 0.01 (δ = 0). Below are examples of Lissajous figures with an odd natural number a, an even natural number b, and | a − b | = 1.
In probability theory, a transition-rate matrix (also known as a Q-matrix, [1] intensity matrix, [2] or infinitesimal generator matrix [3]) is an array of numbers describing the instantaneous rate at which a continuous-time Markov chain transitions between states.
That's why Berkshire Hathaway ended up creating B shares. Each A share can be converted into 1,500 class B shares. Thus, they trade at a much lower price point. Berkshire's B shares currently ...
In mathematics — specifically, in stochastic analysis — the infinitesimal generator of a Feller process (i.e. a continuous-time Markov process satisfying certain regularity conditions) is a Fourier multiplier operator [1] that encodes a great deal of information about the process.