| quadrangle |
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noun
- a geometric shape with four angles and four straight sides
- a courtyard which is quadrangular
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| quadrangular |
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adjective
- having the shape of a quadrangle
- in the shape of a quadrangle
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| quadrant |
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noun
- One of the four sections made by dividing an area with two perpendicular lines.
- (mathematics) The four regions of the Cartesian plane bounded by the x-axis and y-axis.
- (geometry) One fourth of a circle or disc; a sector with an angle of 90°.
- (nautical) A measuring device with a graduated arc of 90° used in locating an altitude.
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| quadratic |
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adjective
- (mathematics) of a class of polynomial of the form <math> y = a.x^2 + b.x + c </math>
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| quadratic equation |
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noun (wikipedia, Quadratic equation)
- In mathematics, a quadratic equation is a polynomial equation of the second degree.
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| quadrature |
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noun
- the process of making something square; squaring
- (mathematics) the process of constructing a square having the same area as a given plane figure, or of computing that area
- (astronomy) a situation in which three celestial bodies form a right-angled triangle
- (physics) the condition in which the phase angle between two alternating quantities is 90°
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| quadrature of the circle |
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noun
- (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.
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| quadrilateral |
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noun quadritaleral
- a polygon having four sides.
adjective
- having four sides.
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| quantic |
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noun - A homogeneous polynomial in two or more variables.
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| quartic |
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noun - (mathematics) an algebraic equation or function of the fourth degree
adjective - (mathematics) of, or relating to the fourth degree
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| quindecagon |
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noun
- a polygon with fifteen sides
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| quintic |
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noun - (mathematics) a quintic polynomial: ax5+bx4+cx3+dx2+ex+f
adjective - (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).
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| quotient |
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noun
- (context, arithmetic) The number resulting from the division of one number by another.
- The quotient of 12 divided by 4 is 3.
- (context, mathematics) By analogy, the result of any process that is the inverse of multiplication as defined for any mathematical entities other than numbers.
- (context, obsolete, rare) A quotum or quota.
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