U+25D7 Right Half Black Circle
U+25D7 was added in Unicode version 1.1 in 1993. It belongs to the block
This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+25D7 forms with similar adjacent characters prevents a line break inside it.
The CLDR project calls this character “right half filled circle” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: circle, filled, half, right.
The Wikipedia has the following information about this codepoint:
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).
In non-technical usage, the term "semicircle" is sometimes used to refer to either a closed curve that also includes the diameter segment from one end of the arc to the other or to the half-disk, which is a two-dimensional geometric region that further includes all the interior points.
By Thales' theorem, any triangle inscribed in a semicircle with a vertex at each of the endpoints of the semicircle and the third vertex elsewhere on the semicircle is a right triangle, with a right angle at the third vertex.
All lines intersecting the semicircle perpendicularly are concurrent at the center of the circle containing the given semicircle.
Representations
System | Representation |
---|---|
Nº | 9687 |
UTF-8 | E2 97 97 |
UTF-16 | 25 D7 |
UTF-32 | 00 00 25 D7 |
URL-Quoted | %E2%97%97 |
HTML hex reference | ◗ |
Wrong windows-1252 Mojibake | â—— |
Encoding: GB18030 (hex bytes) | 81 37 9F 30 |
LATEX | \ding{119} |
Elsewhere
Complete Record
Property | Value |
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1.1 (1993) | |
RIGHT HALF BLACK CIRCLE | |
— | |
Geometric Shapes | |
Other Symbol | |
Common | |
Other Neutral | |
Not Reordered | |
none | |
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✘ | |
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✘ | |
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✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
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Any | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
0 | |
0 | |
0 | |
✘ | |
None | |
— | |
NA | |
Other | |
— | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Yes | |
Yes | |
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Yes | |
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Yes | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
Other | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Other | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
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None | |
neutral | |
Not Applicable | |
— | |
No_Joining_Group | |
Non Joining | |
Alphabetic | |
none | |
not a number | |
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U |