line of incidence — direction of contact … English contemporary dictionary
Incidence — In ci*dence, n. [Cf. F. incidence.] [1913 Webster] 1. A falling on or upon; an incident; an event; an occurrence. [Obs.] Bp. Hall. [1913 Webster] 2. (Physics) The direction in which a body, or a ray of light or heat, falls on any surface. [1913… … The Collaborative International Dictionary of English
incidence — [in′sə dəns] n. [ME (North) < OFr < LL incidentia] 1. the act, fact, or manner of falling upon or influencing 2. the degree or range of occurrence or effect; extent of influence 3. Informal an individual or particular occurrence or… … English World dictionary
incidence — ► NOUN 1) the occurrence, rate, or frequency of a disease, crime, or other undesirable thing. 2) Physics the intersection of a line or ray with a surface … English terms dictionary
Incidence (geometry) — In geometry, the relations of incidence are those such as lies on between points and lines (as in point P lies on line L ), and intersects (as in line L1 intersects line L2 , in three dimensional space). That is, they are the binary relations… … Wikipedia
Incidence matrix — In mathematics, an incidence matrix is a matrix that shows the relationship between two classes of objects. If the first class is X and the second is Y, the matrix has one row for each element of X and one column for each element of Y. The entry… … Wikipedia
Incidence structure — In combinatorial mathematics, an incidence structure is a triple :C=(P,L,I)., where P is a set of points , L is a set of lines and I subseteq P imes L is the incidence relation. The elements of I are called flags. If :(p,ell) in I,we say that… … Wikipedia
Angle of incidence — Incidence In ci*dence, n. [Cf. F. incidence.] [1913 Webster] 1. A falling on or upon; an incident; an event; an occurrence. [Obs.] Bp. Hall. [1913 Webster] 2. (Physics) The direction in which a body, or a ray of light or heat, falls on any… … The Collaborative International Dictionary of English
Incidence algebra — In order theory, a field of mathematics, an incidence algebra is an associative algebra, defined for any locally finite partially ordered set and commutative ring with unity. Contents 1 Definition 1.1 Related concepts 2 Special elements … Wikipedia
Line (geometry) — Three lines the red and blue lines have the same slope, while the red and green ones have same y intercept … Wikipedia