# All Words Glossary

Glossary of Math Terms
beginning with letter Q
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 quadrangle  noun
1. a geometric shape with four angles and four straight sides
2. a courtyard which is quadrangular
 quadrangular  1. having the shape of a quadrangle
2. in the shape of a quadrangle
 quadrant  noun
1. One of the four sections made by dividing an area with two perpendicular lines.
1. (mathematics) The four regions of the Cartesian plane bounded by the x-axis and y-axis.
2. (geometry) One fourth of a circle or disc; a sector with an angle of 90&deg;.
3. (nautical) A measuring device with a graduated arc of 90&deg; used in locating an altitude.
 quadratic  1. (mathematics) of a class of polynomial of the form [itex] y = a.x^2 + b.x + c [/itex]
 quadratic equation  1. In mathematics, a quadratic equation is a polynomial equation of the second degree.
 quadrature  noun
1. the process of making something square; squaring
2. (mathematics) the process of constructing a square having the same area as a given plane figure, or of computing that area
3. (astronomy) a situation in which three celestial bodies form a right-angled triangle
4. (physics) the condition in which the phase angle between two alternating quantities is 90°
 quadrature of the circle  noun
1. (mathematics) The problem, proposed by ancient Greek geometers, of using a finite ruler-and-compass construction to make a square with the same area as a given circle.
 quadrilateral  1. a polygon having four sides.
1. having four sides.
 quantic  noun
1. A homogeneous polynomial in two or more variables.
 quartic  noun
1. (mathematics) an algebraic equation or function of the fourth degree
1. (mathematics) of, or relating to the fourth degree
 quindecagon  noun
1. a polygon with fifteen sides
 quintic  noun
1. (mathematics) a quintic polynomial: ax5+bx4+cx3+dx2+ex+f
1. (mathematics) Of or relating to the fifth degree, such as a quintic polynomial which has the form ax5+bx4+cx3+dx2+ex+f (containing a term with the independant variable raised to the fifth power).
 quotient  noun
1. (context, arithmetic) The number resulting from the division of one number by another.
• The quotient of 12 divided by 4 is 3.
1. (context, mathematics) By analogy, the result of any process that is the inverse of multiplication as defined for any mathematical entities other than numbers.
2. (context, obsolete, rare) A quotum or quota.

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