nonlinear response functions

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• Nonlinear regression — See Michaelis Menten kinetics for details In statistics, nonlinear regression is a form of regression analysis in which observational data are modeled by a function which is a nonlinear combination of the model parameters and depends on one or… …   Wikipedia

• Nonlinear Regression — A form of regression analysis in which data is fit to a model expressed as a mathematical function. Simple linear regression relates two variables (X and Y) with a straight line (y = mx + b), while nonlinear regression must generate a line… …   Investment dictionary

• Impulse response — The Impulse response from a simple audio system. Showing the original impulse, the response after high frequency boosting, and the response after low frequency boosting. In signal processing, the impulse response, or impulse response function… …   Wikipedia

• Item response theory — In psychometrics, item response theory (IRT) is a body of theory describing the application of mathematical models to data from questionnaires and tests as a basis for measuring abilities, attitudes, or other variables. It is used for statistical …   Wikipedia

• Step response — The step response of a system in a given initial state consists of the time evolution of its outputs when its control inputs are Heaviside step functions. In electronic engineering and control theory, step response is the time behaviour of the… …   Wikipedia

• Even and odd functions — In mathematics, even functions and odd functions are functions which satisfy particular symmetry relations, with respect to taking additive inverses. They are important in many areas of mathematical analysis, especially the theory of power series …   Wikipedia

• Metamaterial — Negative index metamaterial array configuration, which was constructed of copper split ring resonators and wires mounted on interlocking sheets of fiberglass circuit board. The total array consists of 3 by 20×20 unit cells with overall dimensions …   Wikipedia

• Green–Kubo relations — give exact mathematical expression for transport coefficients in terms of integrals of time correlation functions.Thermal and mechanical transport processesThermodynamic systems may be prevented from relaxing to equilibrium because of the… …   Wikipedia

• Kramers–Kronig relation — The Kramers–Kronig relations are mathematical properties, connecting the real and imaginary parts of any complex function which is analytic in the upper half plane. These relations are often used to relate the real and imaginary parts of response …   Wikipedia

• Volterra series — The Volterra series and Volterra theorem was developed in 1887 by Vito Volterra. It is a model for non linear behavior, similar to the Taylor series. It differs from the Taylor series in its ability to capture memory effects. The Taylor series… …   Wikipedia

• Hysteresis — Not to be confused with Hysteria. Fig. 1. Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The curves form a hysteresis loop. Hysteresis is the dependence of a system not… …   Wikipedia