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The upper half-circle with radius a with a dot at the number i in the complex plane. See also Image:ContourDiagram.png: Date: 14 March 2007, 12:42 (UTC) Source: Own work: Author: Jitse Niesen: Permission (Reusing this file)
In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. It is a circular arc that measures 180° (equivalently, π radians, or a half-turn). It only has one line of symmetry (reflection symmetry).
This is a list of two-dimensional geometric shapes in Euclidean and other geometries. For mathematical objects in more dimensions, see list of mathematical shapes. For a broader scope, see list of shapes.
Geometric Shapes; Range: U+25A0..U+25FF ... Name Symbol Name Symbol Name Last Hex# HTML Hex ... Picture CIRCLE WITH LEFT HALF BLACK ...
black circle: u+25cf circle with left half black: u+25d0 circle with right half black: u+25d1 circle with lower half black: u+25d2 circle with upper half black: u+25d3 circle with upper right quadrant black: u+25d4 circle with all but upper left quadrant black: u+25d5 left half black circle: u+25d6 right half black circle: u+25d7 inverse bullet ...
Inkscape is a vector graphics editor.It is used for both artistic and technical illustrations such as cartoons, clip art, logos, typography, diagrams, and flowcharts.It uses vector graphics to allow for sharp printouts and renderings at unlimited resolution and is not bound to a fixed number of pixels like raster graphics.
Lists of shapes cover different types of geometric shape and related topics. They include mathematics topics and other lists of shapes, such as shapes used by drawing or teaching tools. They include mathematics topics and other lists of shapes, such as shapes used by drawing or teaching tools.
While the circle has a relatively low maximum packing density, it does not have the lowest possible, even among centrally-symmetric convex shapes: the smoothed octagon has a packing density of about 0.902414, the smallest known for centrally-symmetric convex shapes and conjectured to be the smallest possible. [3]