rotation about line

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• Rotation (mathematics) — Rotation of an object in two dimensions around a point O. In geometry and linear algebra, a rotation is a transformation in a plane or in space that describes the motion of a rigid body around a fixed point. A rotation is different from a… …   Wikipedia

• Rotation matrix — In linear algebra, a rotation matrix is a matrix that is used to perform a rotation in Euclidean space. For example the matrix rotates points in the xy Cartesian plane counterclockwise through an angle θ about the origin of the Cartesian… …   Wikipedia

• Rotation representation (mathematics) — In geometry a rotation representation expresses the orientation of an object (or coordinate frame) relative to a coordinate reference frame. This concept extends to classical mechanics where rotational (or angular) kinematics is the science of… …   Wikipedia

• Rotation — This article is about movement of a physical body. For other uses, see Rotation (disambiguation). A polyhedron resembling a sphere rotating around an axis. A rotation is a circular movement of an object around a center (or point) of rotation. A… …   Wikipedia

• Rotation around a fixed axis — Rotational motion can occur around more than one axis at once, and can involve phenomena such as wobbling and precession. Rotation around a fixed axis is a special case of rotational motion, which does not involve those phenomena. The kinematics… …   Wikipedia

• Rotation number — This article is about the rotation number, which is sometimes called the map winding number or simply winding number. There is another meaning for winding number, which appears in complex analysis. In mathematics, the rotation number is an… …   Wikipedia

• rotation — 1. Turning or movement of a body around its axis. 2. A recurrence in regular order of certain events, such as the symptoms of a periodic disease. 3. In medical education, a period of time on a particular service or specialty …   Medical dictionary

• rotation axis — noun : a simple axis of symmetry in a crystal about which the whole crystal configuration is brought into coincidence with its original aspect by a rotation of one half, one third, one fourth, or one sixth of a turn about the axis * * * Crystall …   Useful english dictionary

• rotation axis — Crystall. an imaginary line through a crystal about which the crystal may be rotated a specified number of degrees and be brought back to its original position. Also called axis of symmetry, symmetry axis of rotation. Cf. symmetry element. [1900… …   Universalium

• Instantaneous axis of rotation — Instantaneous In stan*ta ne*ous, a. [Cf. F. instantan[ e].] [1913 Webster] 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. [1913 Webster] His reason saw… …   The Collaborative International Dictionary of English

• Instantaneous center of rotation — Instantaneous In stan*ta ne*ous, a. [Cf. F. instantan[ e].] [1913 Webster] 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. [1913 Webster] His reason saw… …   The Collaborative International Dictionary of English