Re-entrant polygon

Re-entrant polygon - Factbites
Where results make sense
About us | Why use us? | Reviews | PR | Contact us

Topic: Re-entrant polygon

Note: these results are not from the primary (high quality) database.

In the News (Sun 27 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Diagonal - Wikipedia, the free encyclopedia
		As applied to a polygon, a diagonal is a line segment joining two vertices that are not adjacent.
		When n is the number of vertices in a polygon and d is the number of possible different diagonals, each vertex has possible diagonals to all other vertices save for itself and the two adjacent vertices, or n-3 diagonals; this multiplied by the number of vertices is
		In fact a polygon is convex if and only if the diagonals are internal.
	en.wikipedia.org /wiki/Diagonal

	ipedia.com: Trench warfare Article
		Battlefield features could be given a descriptive name ("Polygon Wood" near Ypres or "Lone Pine"), a whimsical name ("Sausage Valley" and "Mash Valley" on the Somme), a unit name ("Inniskilling Inch" at Helles named for the Royal Inniskilling Fusiliers) or the name of a soldier ("Monash Valley" at Anzac named after General John Monash).
		Prefixing a feature with "Dead Man's" was also popular for obvious reasons, such as "Dead Man's Road" leading in to Pozières or "Dead Man's Ridge" at Anzac.
	www.ipedia.com /trench_warfare.html

	A check-list of gatomorphism signature-permutations produced by gatomorf.c
		/ { 82347, 82348, "Gatomorphisms A082347/A082348: Apply A069768/A069767 in recursion schemes 2 & 3", NULLGMT, NULLGMT, gms_A082347, gms_A082348, 89406, 0, 0, 0 }, { 57161, 57162, "Rotate a polygon* triangulation", NULLGMT, NULLGMT, gms_A057161, gms_A057162, 1683, 19590, 57544, 57544 }, { 74681, 74682, "Gatomorphism A074681/A074682", /* Conjugate of the next one.
	www.research.att.com /~njas/sequences/gatomorf.c.txt

	Re-entrant polygon - Wikipedia, the free encyclopedia
		A re-entrant, or concave polygon is one in which at least one interior angle is more than 180 degrees (i.e.
		A polygon is re-entrant or concave if there exist two points within the polygon which cannot be connected by a straight line which lies within the polygon.
		[5] All such polygons are concave, but not all polygons that have a boundary that "touches" itself (much less all concave polygons) have a boundary that intersects itself.
	en.wikipedia.org /wiki/Re-entrant_polygon

	Concavity - Wikipedia, the free encyclopedia
		A concave polygon is often called re-entrant polygon (but in some cases the latter term has a different meaning).
		In mathematical analysis, concavity is a property of certain geometric figures, and in calculus, a property of certain graphs of functions.
		Similarly, a differentiable function f is concave on an interval if its derivative function f ′ is decreasing on that interval: a concave function has a decreasing slope.
	en.wikipedia.org /wiki/Concavity

	Convex polygon - Wikipedia, the free encyclopedia
		A concave polygon is often called re-entrant polygon (but in some cases the latter term has a different meaning).
		Every line segment between two vertices of the polygon does not go exterior to the polygon (i.e., it remains inside or on the boundary of the polygon).
		In geometry, a convex polygon is a simple polygon whose interior is a convex set.
	en.wikipedia.org /wiki/Concave_polygon (184 words)

	Concavity - Wikipedia, the free encyclopedia
		A concave polygon is often called re-entrant polygon (but in some cases the latter term has a different meaning).
		In mathematical analysis, concavity is a property of certain geometric figures, and in calculus, a property of certain graphs of functions.
		If f(x) is twice-differentiable, then f(x) is concave iff f ′′(x) is non-positive.
	en.wikipedia.org /wiki/Concavity (184 words)

	Diagonal
		For a convex polygon the diagonals run inside the polygon - but not otherwise, for re-entrant polygons.
		In the case of a square matrix, the main or principal diagonal is the diagonal line of entries running north-west to south-east.
		Diagonal Quartic Surfaces Articles, computations and software in Magma and GP by Martin Bright.
	www.serebella.com /encyclopedia/article-Diagonal.html (498 words)

	Quadrilaterals - Quadrilaterals Discussion
		Quadrilaterals Types of Quadrilaterals Finding the Area of a Quadrilateral Area of a Polygon Diagonals Diagram 1: Convex and Re-entrant Quadrilaterals
		Properties Of Quadrilaterals Stephen Maraldo Definitions, theorems, and a diagram.
		The following formulas give the area of a general quadrilateral (see More formulas can be given for special cases of quadrilaterals.
	findoutpages.com /?q=quadrilaterals (244 words)

Try your search on: Qwika (all wikis)

Topic: Re-entrant polygon

Ads by Google

Related Topics

In the News (Sun 27 Dec 09)