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Τι (ποιος) είναι dihedral$510946$ - ορισμός
WIKIMEDIA DISAMBIGUATION PAGE
Dihedral (disambiguation)
Dihedral
·adj Having two plane faces; as, the dihedral summit of a crystal.
II. Dihedral ·add. ·adj Of wing pairs, inclined at an upward angle to each other.
III. Dihedral ·add. ·adj Of a kite or an aeroplane, having wings that make with one another a dihedral angle, ·esp. when the angle between the upper sides is less than 180°.
Dihedral group
![reflection]] of a regular hexagon](https://commons.wikimedia.org/wiki/Special:FilePath/Hexagon reflections.svg?width=200 "reflection]] of a regular hexagon")
![The symmetries of this pentagon are [[linear transformation]]s of the plane as a vector space.](https://commons.wikimedia.org/wiki/Special:FilePath/Pentagon Linear.png?width=200 "The symmetries of this pentagon are [[linear transformation]]s of the plane as a vector space.")
![The [[symmetry group]] of a [[snowflake]] is D<sub>6</sub>, a dihedral symmetry, the same as for a regular [[hexagon]].](https://commons.wikimedia.org/wiki/Special:FilePath/Snowflake8.png?width=200 "The [[symmetry group]] of a [[snowflake]] is D<sub>6</sub>, a dihedral symmetry, the same as for a regular [[hexagon]].")
![2D D16 symmetry – Imperial Seal of Japan, representing eightfold [[chrysanthemum]] with sixteen [[petal]]s.](https://commons.wikimedia.org/wiki/Special:FilePath/Imperial Seal of Japan.svg?width=200 "2D D16 symmetry – Imperial Seal of Japan, representing eightfold [[chrysanthemum]] with sixteen [[petal]]s.")
![The Red Star of David]]](https://commons.wikimedia.org/wiki/Special:FilePath/Red Star of David.svg?width=200 "The Red Star of David]]")
![National flag of the Republic of India]].](https://commons.wikimedia.org/wiki/Special:FilePath/Ashoka Chakra.svg?width=200 "National flag of the Republic of India]].")
GROUP OF SYMMETRIES OF A REGULAR POLYGON
Dieder group; Dihedral symmetry; Dihedral group D2; Dihedral group D3; Dihedral group D4; Dihedral group D5; Dihedral group D7; Dihedron group; Dihedral Group; Dihedral Groups; 222 symmetry; 322 symmetry; 422 symmetry; 522 symmetry; 622 symmetry
In mathematics, a dihedral group is the group of symmetries of a regular polygon, which includes rotations and reflections. Dihedral groups are among the simplest examples of finite groups, and they play an important role in group theory, geometry, and chemistry.
Βικιπαίδεια
Dihedral
Dihedral or polyhedral may refer to:
- Dihedral angle, the angle between two mathematical planes
- Dihedral (aeronautics), the upward angle of a fixed-wing aircraft's wings where they meet at the fuselage, dihedral effect of an aircraft, longitudinal dihedral angle of a fixed-wing aircraft
- Dihedral group, the group of symmetries of the n-sided polygon in abstract algebra
- Also Dihedral symmetry in three dimensions
- Dihedral kite, also known as a bowed kite
- Dihedral doors, also known as butterfly doors
- Dihedral prime, also known as a dihedral calculator prime
- In rock climbing, an inside corner of rock
