harmonic curve
1harmonic curve — harmoninė kreivė statusas T sritis fizika atitikmenys: angl. harmonic curve vok. harmonische Kurve, f rus. гармоническая кривая, f pranc. courbe harmonique, f …
2harmonic wave — noun (physics) A wave whose profile is a sine curve • • • Main Entry: ↑harmony …
3Harmonic series (mathematics) — In mathematics, the harmonic series is the divergent infinite series: Its name derives from the concept of overtones, or harmonics in music: the wavelengths of the overtones of a vibrating string are 1/2, 1/3, 1/4, etc., of the string s… …
4Harmonic map — A (smooth) map φ: M → N between Riemannian manifolds M and N is called harmonic if it is a critical point of the energy functional E (φ).This functional E will be defined precisely below mdash;one way of understanding it is to imagine that M is… …
5Harmonic function — In mathematics, mathematical physics and the theory of stochastic processes, a harmonic function is a twice continuously differentiable function f : U rarr; R (where U is an open subset of R n ) which satisfies Laplace s equation,… …
6harmonic analysis — Math. 1. the calculation of Fourier series and their generalization. 2. the study of Fourier series and their generalization. Also called Fourier analysis. [1865 70] * * * ▪ mathematics mathematical procedure for describing and analyzing… …
7Projective harmonic conjugates — is defined by the following harmonic construction::“Given three collinear points A, B, C, let L be a point not lying on their join and let any line through C met LA, LB at M, N respectively. If AN and BM met at K , and LK meets AB at D , then D… …
8Lissajous curve — In mathematics, a Lissajous curve (Lissajous figure or Bowditch curve) is the graph of the system of parametric equations:x=Asin(at+delta),quad y=Bsin(bt),which describes complex harmonic motion. This family of curves was investigated by… …
9Complex harmonic motion — occurs when a number of simple harmonic motions are combined. Chords in music are an example of this phenomenon. Any continuous periodic function can be represented as a complex harmonic motion using its fourier series. See also Cymatics… …
10Decline Curve — A method for estimating reserves and predicting production in oil reservoirs and oil fields. The decline curve shows how oil and gas production rates decrease over time. Most decline curves are based on exponential, hyperbolic or harmonic Arps… …
