Medical dictionary. 2011.
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
hippocratic method — closed reduction of anterior shoulder dislocation by abduction of the arm with longitudinal traction and gentle external rotation; countertraction is provided by the placing of the physician s foot against the chest wall … Medical dictionary
Kocher method — closed reduction of anterior shoulder dislocation by applying traction and external rotation of the arm, then bringing the arm across the patient s chest to effect reduction, and finally internally rotating the arm … Medical dictionary
Milch method — closed reduction of anterior shoulder dislocation by traction on the arm, which is abducted overhead with the patient in the supine position, external rotation, and pressure on the head of the humerus; in some modifications of this technique the… … Medical dictionary
traction-countertraction method — closed reduction of anterior shoulder dislocation by longitudinal traction on the arm with external rotation; countertraction is provided by a sheet passed around the chest under the axilla of the affected shoulder and held by an assistant … Medical dictionary
Slope deflection method — The slope deflection method is a structural analysis method for beams and frames introduced in 1915 by George A. Maney.Citation|first=George A.|last=Maney|year=1915|title=Studies in Engineering|publisher=University of… … Wikipedia
Direct stiffness method — As one of the methods of structural analysis, the direct stiffness method (DSM), also known as the displacement method or matrix stiffness method, is particularly suited for computer automated analysis of complex structures including the… … Wikipedia
Cangjie input method — Traditional Chinese 倉頡輸入法 Simplified Chinese 仓颉输入法 Tran … Wikipedia
Quaternions and spatial rotation — Unit quaternions provide a convenient mathematical notation for representing orientations and rotations of objects in three dimensions. Compared to Euler angles they are simpler to compose and avoid the problem of gimbal lock. Compared to… … Wikipedia
