What are quadratures?
Answers:
quadrature is a square space:squareness:squaring:the finding of a square equal to a given figure:an angular distance of 90 degrees.
in mathematics, gaussian quadratures are used in numerical integration
The Gaussian quadratures provide the flexibility of choosing not only the weighting coefficients (weight factors) but also the locations (abscissas) where the functions are evaluated. As a result, Gaussian quadratures yield twice as many places of accuracy as that of the Newton-Cotes formulas with the same number of function evaluations. When the function is known and smooth, the Gaussian quadratures usually have decisive advantages in efficiency. However, engineering data obtained from measurements are not always smooth or located right on the abscissas which are not uniformly spaced. Therefore, the Gaussian quadratures are not suitable for such cases.
Those are the little thingys inside your mouse that encode the signals that control your cursor's x and y movements.
they are proprties of quadrents
In mathematics:
* Quadrature of the circle (also squaring the circle), in geometry, the problem of constructing a square and circle of equal area, impossible using only an unmarked straight-edge and compass
* Summing in quadrature means summing the squares of numbers, then taking the square root, as used in error analysis
* Numerical quadrature, the numerical calculation of the area under a curve, or more generally, using numerical integration to calculate a definite integral.
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The process of making something square.
Mathematics: The process of constructing a square equal in area to a given surface.
Astronomy: A configuration in which the position of one celestial body is 90° from another celestial body, as measured from a third.
Quadratures:
"Square Aspect". Changes, phases or quarters of the moon.
Quadrature, derived from Latin quadrare, may refer to:
In signal processing:
Quadrature amplitude modulation (QAM), a modulation method of using both a carrier wave and a 'quadrature' carrier wave that is 90° out of phase with the main carrier
Quadrature phase, oscillations that are said to be in quadrature if they are separated in phase by 90° (π/2, or λ/4)
Quadrature filter, the analytic signal of a real-valued filter
In mathematics:
-Quadrature of the circle (also squaring the circle), in geometry, the problem of constructing a square and circle of equal area, impossible using only an unmarked straight-edge and compass .
-Summing in quadrature means summing the squares of numbers, then taking the square root, as used in error analysis .
-Numerical quadrature, the numerical calculation of the area under a curve, or more generally, using numerical integration to calculate a definite integral .
Quadrature may also refer to:
In motion control, quadrature encoder is a rotary encoder giving both the relative position and the direction of motion of a shaft
In astronomy, quadrature occurs when two celestial bodies appear 90° apart from one another as viewed from a third celestial body. As an example, the Moon and the Sun are in quadrature with respect to the Earth when the Moon is in its exact first quarter or last quarter phases. The symbol for astronomical quadrature is a hollow square .
When I was doing my degree, in numerical analysis, quadrature was another name for numerical integration.
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