In spherical astronomy, quadrature is the configuration of a celestial object in which its elongation is a right angle (90 degrees), i.e., the direction...

Look up quadrature in Wiktionary, the free dictionary. Quadrature may refer to: Quadrature phase, oscillations that are said to be in quadrature if they...

numerical value of a definite integral. The term numerical quadrature (often abbreviated to quadrature) is more or less a synonym for "numerical integration"...

Conjunction Opposition Cosmobiology Hamburg School of Astrology Quadrature (astronomy) "The Aspects". Archived from the original on 2014-08-06. Retrieved...

encoder employs a quadrature encoder to generate its A and B output signals. The pulses emitted from the A and B outputs are quadrature-encoded, meaning...

Spherical astronomy, or positional astronomy, is a branch of observational astronomy used to locate astronomical objects on the celestial sphere, as seen...

of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is...

sometimes used as a metaphor for trying to do the impossible. The term quadrature of the circle is sometimes used as a synonym for squaring the circle....

central planet, for instance the angular distance of Io from Jupiter. A quadrature occurs when the position of a body (moon or planet) is such that its elongation...

The Kerala school of astronomy and mathematics or the Kerala school was a school of mathematics and astronomy founded by Madhava of Sangamagrama in Tirur...

During the Renaissance, great advances occurred in geography, astronomy, chemistry, physics, mathematics, manufacturing, anatomy and engineering. The...

sum Quadratic Gauss sum Gaussian quadrature Gauss–Hermite quadrature Gauss–Jacobi quadrature Gauss–Kronrod quadrature formula Gauss–Newton algorithm Gauss–Legendre...

of Hindu Astronomy (in perspective) is the first definitive book giving a comprehensive description of the contribution of Kerala to astronomy and mathematics...

possible that he used an iterative procedure to calculate these values. In Quadrature of the Parabola, Archimedes proved that the area enclosed by a parabola...

remarkable results, such as the sum of an infinite geometric series in Quadrature of the Parabola, an approximation to the value π in Measurement of the...

science. He was director of the Göttingen Observatory and professor of astronomy from 1807 until his death in 1855. He is widely considered one of the...

when the observer–Moon–Sun angle is 90°[citation needed], also known as quadrature[dubious – discuss]. This is not the same as a right angle[dubious – discuss]...

cube', that is, the problem of how to construct a cube root. Like the quadrature of the circle, this was another of the so-called three great mathematical...

at 89.85° and 270.15°, respectively. (This is not to be confused with quadrature which is when the Sun-Earth-Moon/superior planet angle is 90°.) In botany...

and Voltaire's Micromégas. Syzygies and Lunar Quadratures (syzygy and quadrature are terms in astronomy) consists of two parts—the first is an account...

astronomer who is considered to be the founder of the Kerala school of astronomy and mathematics in the Late Middle Ages. Madhava made pioneering contributions...

the three displayed here — for conjunction, opposition, and quadrature — are used in astronomy. Symbols for a comet (☄) and a star () have been used in published...

famous book, the Principia, before publication. He also invented the quadrature formulas known as Newton–Cotes formulas, and made a geometric argument...

perform a quadrature of a rectangular hyperbola by Grégoire de Saint-Vincent, a Belgian Jesuit residing in Prague. Archimedes had written The Quadrature of the...

is now known as Cavalieri's quadrature formula. Towards the end of his life, Cavalieri published two books on astronomy. While they use the language...

the Sun and Moon are separated by 90° when viewed from the Earth (in quadrature), and the solar tidal force partially cancels the Moon's tidal force....

the formula given below to one hundred decimal places. His ingenious quadrature of the circle was later investigated by Charles Hutton. A mass of his...

phase ϑ {\displaystyle \vartheta } are the eigenvalues of the normalized quadrature operator X ϑ {\displaystyle X_{\vartheta }} , defined as X ^ ϑ = 1 2 [...

circle or the surface. When the planet, moving from aphelion, comes to quadrature on the same surface, with equal motion, it should differ from the apparent...

Compendium of Astronomical Rationale), is a major treatise on mathematics and astronomy, written by the Indian astronomer Jyesthadeva of the Kerala school of...