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The "nine dots" puzzle. The puzzle asks to link all nine dots using four straight lines or fewer, without lifting the pen. The nine dots puzzle is a mathematical puzzle whose task is to connect nine squarely arranged points with a pen by four (or fewer) straight lines without lifting the pen or retracing any lines.
In geometry, an incidence relation is a heterogeneous relation that captures the idea being expressed when phrases such as "a point lies on a line" or "a line is contained in a plane" are used.
A Delaunay triangulation in the plane with circumcircles shown. In computational geometry, a Delaunay triangulation or Delone triangulation of a set of points in the plane subdivides their convex hull [1] into triangles whose circumcircles do not contain any of the points; that is, each circumcircle has its generating points on its circumference, but all other points in the set are outside of it.
In a continuous-line drawing, the artist looks both at the subject and the paper, moving the medium over the paper, and creating a silhouette of the object. Like blind contour drawing, contour drawing is an artful experience that relies more on sensation than perception; it's important to be guided by instinct. [2]
In comics studies, sequential art is a term proposed by comics artist Will Eisner [1] to describe art forms that use images deployed in a specific order for the purpose of graphic storytelling [2] (i.e., narration of graphic stories) [3] or conveying information. [2]
A demonstration of the Minangkabau style of silat.. Silat is the collective term for a class of martial arts from the Nusantara and surrounding geocultural areas of Southeast Asia.
Coinage of Raden Patah, possibly minted around 15th to 16th century, The coin is displayed at Sumatran Numismatic Museum in Medan. Obverse: سلطان دمق فقرن الفـَـاتح (Sultan Demak Pangeran al-Fatih (Raden Patah)), Reverse: محمد صل وسلم عليه (the Shalawat); both written in the perso-arabic script.