homography

homography is a   Noun

Definition:

[1] That method of spelling in which every sound is represented by a single character, which indicates that sound and no other.

[2] A relation between two figures, such that to any point of the one corresponds one and but one point in the other, and vise versa. Thus, a tangent line rolling on a circle cuts two fixed tangents of the circle in two sets of points that are homographic.

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