Definition of Spherical sector. Meaning of Spherical sector. Synonyms of Spherical sector

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Definition of Spherical sector

Spherical sector
Sector Sec"tor, n. [L., properly, a cutter, fr. secare, sectum, to cut: cf. F. secteur. See Section.] 1. (Geom.) A part of a circle comprehended between two radii and the included arc. 2. A mathematical instrument, consisting of two rulers connected at one end by a joint, each arm marked with several scales, as of equal parts, chords, sines, tangents, etc., one scale of each kind on each arm, and all on lines radiating from the common center of motion. The sector is used for plotting, etc., to any scale. 3. An astronomical instrument, the limb of which embraces a small portion only of a circle, used for measuring differences of declination too great for the compass of a micrometer. When it is used for measuring zenith distances of stars, it is called a zenith sector. Dip sector, an instrument used for measuring the dip of the horizon. Sector of a sphere, or Spherical sector, the solid generated by the revolution of the sector of a circle about one of its radii, or, more rarely, about any straight line drawn in the plane of the sector through its vertex.

Meaning of Spherical sector from wikipedia

- In geometry, a spherical sector, also known as a spherical cone, is a portion of a sphere or of a ball defined by a conical boundary with apex at the...
- In geometry, a spherical cap or spherical dome is a portion of a sphere or of a ball cut off by a plane. It is also a spherical segment of one base, i...
- scientific fields. A list of the spherical harmonics is available in Table of spherical harmonics. Since the spherical harmonics form a complete set of...
- radii and a circular arc Hyperbolic sector, a region enclosed by two radii and a hyperbolic arc Spherical sector, a portion of a sphere enclosed by a...
- circular arc on the boundary. Conic section Earth quadrant Sector of (mathematics) Spherical sector – the analogous 3D figure Dewan, Rajesh K. (2016). Saraswati...
- spades: Spheres Hemisphere Spherical cap Spherical lune Spherical polygon Spherical sector Spherical segment Spherical wedge Spherical zone 3-sphere Affine...
- Spherical sector Kern, William F.; Bland, James R. (1938). Solid Mensuration with Proofs. p. 95–97. Wikimedia Commons has media related to Spherical segments...
- A spherical cone may mean: a hypercone in 4D a spherical sector in 3D Spherical conic This disambiguation page lists articles ****ociated with the title...
- 14-metre-diameter (46 ft) round radome, each covering a 120-degree spherical sector to provide full 360‑degree coverage. The multi-function, three-dimensional...
- Spherical trigonometry is the branch of spherical geometry that deals with the metrical relationships between the sides and angles of spherical triangles...