Clinician definition, a physician or other qualified person who is involved in the treatment and observation of living patients, as distinguished from one engaged in research. See more. Dictionary.com
In geometry, the foci (/ËfoÊsaÉª/ ; singular focus) are a pair of special points with reference to which any of a variety of curves is constructed. For example, foci can be used in defining conic sections, the four types of which are the circle, ellipse, parabola, and hyperbola. In addition, foci are used to define the Cassini oval and the Cartesian oval.
Formula for the focus of an Ellipse. An ellipse is the set of all points in a plane such that the sum of the distances from T to two fixed points F 1 and F 2 is a given constant, K. TF1 + TF2 = K. F 1 and F 2 are both foci (plural of focus) of the ellipse. The formula generally associated with the focus of an ellipse is cÂ²= aÂ² â bÂ² where c is the distance from the focus to vertex and b is the distance from the vertex a co-vetex on the minor axis.