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2. Laminate flooring - Wikipedia

   en.wikipedia.org/wiki/Laminate_flooring

   This is an accepted version of this page This is the latest accepted revision, reviewed on 8 December 2024. Type of manufactured floor covering This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Laminate flooring" – news · newspapers · books ...

3. Solid harmonics - Wikipedia

   en.wikipedia.org/wiki/Solid_harmonics

   In physics and mathematics, the solid harmonics are solutions of the Laplace equation in spherical polar coordinates, assumed to be (smooth) functions . There are two kinds: the regular solid harmonics R ℓ m ( r ) {\displaystyle R_{\ell }^{m}(\mathbf {r} )} , which are well-defined at the origin and the irregular solid harmonics I ℓ m ( r ...

4. Harmonic function - Wikipedia

   en.wikipedia.org/wiki/Harmonic_function

   The descriptor "harmonic" in the name harmonic function originates from a point on a taut string which is undergoing harmonic motion. The solution to the differential equation for this type of motion can be written in terms of sines and cosines, functions which are thus referred to as harmonics .

5. Harmonic - Wikipedia

   en.wikipedia.org/wiki/Harmonic

   In physics, acoustics, and telecommunications, a harmonic is a sinusoidal wave with a frequency that is a positive integer multiple of the fundamental frequency of a periodic signal. The fundamental frequency is also called the 1st harmonic; the other harmonics are known as higher harmonics.

6. Harmonic analysis - Wikipedia

   en.wikipedia.org/wiki/Harmonic_analysis

   Harmonic analysis is a branch of mathematics concerned with investigating the connections between a function and its representation in frequency.The frequency representation is found by using the Fourier transform for functions on unbounded domains such as the full real line or by Fourier series for functions on bounded domains, especially periodic functions on finite intervals.

7. Harmonic (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Harmonic_(mathematics)

   In mathematics, a number of concepts employ the word harmonic. The similarity of this terminology to that of music is not accidental: the equations of motion of vibrating strings, drums and columns of air are given by formulas involving Laplacians ; the solutions to which are given by eigenvalues corresponding to their modes of vibration.