Quadrature (disambiguation)
With quadrature is called:
- in astronomy a constellation in which celestial bodies form a geocentric angle of 90 ° - see quadrature ,
- in physics and electrical engineering a phase shift of a periodic signal by 90 ° - see quadrature amplitude modulation ,
- in math
- the transformation of a flat figure into a square of equal area , such as E.g .:
the transformation of a circle, see squaring the circle or
the transformation of a convex or concave polygon , see quadrature of the polygon ; - the calculation of the area of an area delimited by curves, see Numerical Quadrature (Numerical Integration); the term is out of date, the more general term integration is usually used today instead.
- the transformation of a flat figure into a square of equal area , such as E.g .:
- a proportion key in architecture - see proportion (architecture) .
