**Harmonic (disambiguation)** — Harmonic usually refers to components of sound. For applications of the concept to the Electrical power industry and power systems, see Harmonics (electrical power).Harmonic can also refer to: * harmonic (mathematics), a number of concepts in… … Wikipedia

**Harmonic series (music)** — Harmonic series of a string. Pitched musical instruments are often based on an approximate harmonic oscillator such as a string or a column of air, which oscillates at numerous frequencies simultaneously. At these resonant frequencies, waves… … Wikipedia

**Harmonic analysis** — is the branch of mathematics that studies the representation of functions or signals as the superposition of basic waves. It investigates and generalizes the notions of Fourier series and Fourier transforms. The basic waves are called harmonics… … Wikipedia

**harmonic function** — ▪ mathematics mathematical function of two variables having the property that its value at any point is equal to the average of its values along any circle around that point, provided the function is defined within the circle. An infinite… … Universalium

**Mathematics and art** — have a long historical relationship. The ancient Egyptians and ancient Greeks knew about the golden ratio, regarded as an aesthetically pleasing ratio, and incorporated it into the design of monuments including the Great Pyramid,[1] the Parthenon … Wikipedia

**Harmonic series** — could refer to two related concepts:*Harmonic series (mathematics) *Harmonic series (music) … Wikipedia

**harmonic construction** — ▪ mathematics in projective geometry, determination of a pair of points C and D that divides a line segment AB harmonically (see Figure >), that is, internally and externally in the same ratio, the internal ratio CA/CB being equal to the… … Universalium

**harmonic pencil** — noun (mathematics) A pencil of four rays that divides a transversal harmonically • • • Main Entry: ↑harmony … Useful english dictionary

**Harmonic 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… … Wikipedia

**Harmonic divisor number** — This article is about harmonic divisor numbers. For meanings of harmonic number, see harmonic number (disambiguation). In mathematics, a harmonic divisor number, or Ore number (named after Øystein Ore who defined it in 1948), is a positive… … Wikipedia