pencil of geometric objects

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• Pencil (mathematics) — A pencil is a family of geometric objects, such as lines, that have a common property, such as passage through a given line in a given plane.In more technical language, a pencil is the special case of a linear system of divisors in which the… …   Wikipedia

• Pencil (disambiguation) — A pencil is a handheld instrument used to write and draw, usually on paper.Pencil may also mean: * Pencil (physics), a beam of radiant energy in the form of a narrow cone or cylinder * Pencil (mathematics), a family of geometric objects * Pencil… …   Wikipedia

• pencil — I. noun Etymology: Middle English pensel, from Anglo French pincel, from Vulgar Latin *penicellus, alteration of Latin penicillus, diminutive of peniculus brush, from diminutive of penis tail, penis Date: 14th century 1. an artist s brush 2. an… …   New Collegiate Dictionary

• Ellipse — Elliptical redirects here. For the exercise machine, see Elliptical trainer. This article is about the geometric figure. For other uses, see Ellipse (disambiguation). Not to be confused with ellipsis. An ellipse obtained as the intersection of a… …   Wikipedia

• Complete quadrangle — A complete quadrangle (at left) and a complete quadrilateral (at right). In mathematics, specifically projective geometry, a complete quadrangle is a system of geometric objects consisting of any four points in the Euclidean plane, no three of… …   Wikipedia

• drawing — /draw ing/, n. 1. the act of a person or thing that draws. 2. a graphic representation by lines of an object or idea, as with a pencil; a delineation of form without reference to color. 3. a sketch, plan, or design, esp. one made with pen, pencil …   Universalium

• Engineering drawing — Technical drawings An engineering drawing, a type of technical drawing, is used to fully and clearly define requirements for engineered items. Engineering drawing (the activity) produces engineering drawings (the documents). More than just the… …   Wikipedia

• arts, East Asian — Introduction       music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature.       Some studies of East Asia… …   Universalium

• perception — perceptional, adj. /peuhr sep sheuhn/, n. 1. the act or faculty of apprehending by means of the senses or of the mind; cognition; understanding. 2. immediate or intuitive recognition or appreciation, as of moral, psychological, or aesthetic… …   Universalium

• number game — Introduction       any of various puzzles and games that involve aspects of mathematics.       Mathematical recreations comprise puzzles and games that vary from naive amusements to sophisticated problems, some of which have never been solved.… …   Universalium

• Monochrome painting — Kazimir Malevich, Suprematist Composition: White on White, 1918, Museum of Modern Art New York Monochromatic painting has been an important component of avant garde visual art throughout the 20th century and into the 21st century. Painters have… …   Wikipedia