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Convex curve - Wikipedia


Any straight line L divides the Euclidean plane to two half-planes whose union is the entire plane and whose ...

What is the difference between Concave and Convex


2 a of a set of points : containing all points in a line joining any two constituent points b of a geometric figure : comprising a convex set when combined with its ...

Polygons - Math is Fun


They are made of straight lines, and the shape is "closed" (all the lines connect up). ... Concave or Convex. A convex polygon has no angles pointing inwards.

When Is a Set of Lines in Space Convex? - American Mathematical ...


tic features of a convex set of points is that it is connected. Yet we can show: Theorem 1 [8]. There is no notion of convexity for lines or higher-dimensional flats  ...

Geometry Concepts: Line Intersection and its Applications – topcoder


A convex hull of a set of points is the smallest convex polygon that contains every one of the points. It is defined by a subset of all ...

Gurney Journey: Discussion: Convex lines and the figure


Jan 27, 2013 ... I have run across the idea that the human form should be drawn only with convex lines because "there are no concave lines in the figure.

Kids Math: Polygons - Ducksters


A polygon is either convex or concave. It's convex if any line drawn through it intersects only two other lines. If any line drawn through the polygon can hit more  ...

Convex hull trick - PEGWiki


As we have seen, if the set of relevant lines has already been determined and sorted, it becomes trivial to answer any query in ...

Orienteering - Types of Slopes


Contour lines showing a uniform, gentle slope will be evenly spaced and wide apart ... Convex. Contour lines showing a convex slope on a map will be widely ...

computational geometry - Intersection of nD line with convex hull in ...


As mentioned by Ante in the comments, you need to find the closest intersection of all the lines/planes/hyper-planes in the hull. To find the ...

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Concave Upward and Downward - Math is Fun


What about when the slope stays the same (straight line)? It could be both! ... Concave Downward is also called Concave or Convex Upward. Concave Upward ...

Is linear function convex or concave? - Mathematics Stack Exchange


Dec 18, 2013 ... I was wondering if linear function is convex or concave? ... take any two points on the graph... where would be the line joining those two points ...

3.1 Concave and convex functions of a single variable - mjo


Symmetrically, a function of a single variable is convex if every line segment joining two points on its graph does not lie below the graph at any point.