In Euclidean plane geometry, a rectangle is a rectilinear convex polygon or a quadrilateral with four right angles. It can also be defined as: an equiangular...

In geometry, a golden rectangle is a rectangle with side lengths in golden ratio 1 + 5 2 : 1 , {\displaystyle {\tfrac {1+{\sqrt {5}}}{2}}:1,} or ⁠ φ :...

Rectangle packing is a packing problem where the objective is to determine whether a given set of small rectangles can be placed inside a given large polygon...

angles, π/2 radian angles, or right angles). It can also be defined as a rectangle with two equal-length adjacent sides. It is the only regular polygon whose...

A dynamic rectangle is a right-angled, four-sided figure (a rectangle) with dynamic symmetry which, in this case, means that aspect ratio (width divided...

A golden rectangle—that is, a rectangle with an aspect ratio of φ {\displaystyle \varphi } —may be cut into a square and a smaller rectangle with the...

A tiling with rectangles is a tiling which uses rectangles as its parts. The domino tilings are tilings with rectangles of 1 × 2 side ratio. The tilings...

tetrominoes can fit rectangles with holes: All 5 free tetrominoes fit a 7×3 rectangle with a hole. All 7 one-sided tetrominoes fit a 6×5 rectangle with two holes...

Rabatment of the rectangle is a compositional technique used as an aid for the placement of objects or the division of space within a rectangular frame...

larger squares from 49 onwards. Dense packings of circles in non-square rectangles have also been the subject of investigations. Square packing in a circle...

largest empty rectangle problem, maximal empty rectangle problem or maximum empty rectangle problem, is the problem of finding a rectangle of maximal size...

rectangle is connected to the regular octagon. If a regular octagon is partitioned into two isosceles trapezoids and a rectangle, then the rectangle is...

area of functions or lines on a graph, where it is also known as the rectangle rule. It can also be applied for approximating the length of curves and...

of this type are rectangles, and the term axis-aligned rectangle is preferred, although orthogonal rectangle and rectilinear rectangle are in use as well...

The semiotic square, also known as the Greimas square, is a tool used in structural analysis of the relationships between semiotic signs through the opposition...

supergolden rectangle is a rectangle whose side lengths are in a ⁠ ψ : 1 {\displaystyle \psi :1} ⁠ ratio. Compared to the golden rectangle, containing...

The Ailles rectangle is a rectangle constructed from four right-angled triangles which is commonly used in geometry classes to find the values of trigonometric...

convex polygon, a linear time algorithm for the minimum-area enclosing rectangle is known. It is based on the observation that a side of a minimum-area...

The Red Rectangle Nebula, so called because of its red color and unique rectangular shape, is a protoplanetary nebula in the Monoceros constellation....

circle–ellipse problem in software development (sometimes called the square–rectangle problem) illustrates several pitfalls which can arise when using subtype...

In combinatorial mathematics, a Latin rectangle is an r × n matrix (where r ≤ n), using n symbols, usually the numbers 1, 2, 3, ..., n or 0, 1, ..., n...

undefined. A rectangle with one pair of opposite sides of length zero degenerates to a line segment, with zero area. If both of the rectangle's pairs of opposite...

In computational geometry, the minimum bounding rectangle (MBR), also known as bounding box (BBOX) or envelope, is an expression of the maximum extents...

DJ Rectangle is an American DJ/turntablist and Dance/Hip Hop/Club record producer. In 1993, DJ Rectangle won the US DMC Championship and the International...

Rectangle is a French independent record label established in Paris by Quentin Rollet and Noël Akchoté in 1994. It started specializing in vinyl releases...

The first incarnation of Paramount Television was operated as the television production division of the American film studio Paramount Pictures, until...

Parallelograms include rhombi (including those rectangles called squares) and rhomboids (including those rectangles called oblongs). In other words, parallelograms...

triangle, chevron, or concave kite, usually affixed to a line segment or rectangle, and in more complex forms a representation of an actual arrow (e.g. ➵...

Guru Meditation is an error notice originally displayed by the Amiga computer when it crashes. It is now also used by Varnish, a software component used...

rhombus is a rectangle: A rhombus has all sides equal, while a rectangle has all angles equal. A rhombus has opposite angles equal, while a rectangle has opposite...