In spherical astronomy, quadrature is the configuration of a celestial object in which its elongation is perpendicular to the direction of the Sun. It...

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

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...

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

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

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....

In astronomy, a planet's elongation is the angular separation between the Sun and the planet, with Earth as the reference point. The greatest elongation...

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

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...

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...

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...

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]...

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...

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...

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...

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. While studying at the University of...

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...

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

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...

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

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

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...

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...

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...

heuristic methods which resemble modern day concepts somewhat in his The Quadrature of the Parabola, The Method, and On the Sphere and Cylinder. It should...

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