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The Unicode block Braille Patterns (U+2800..U+28FF) contains all 256 possible patterns of an 8-dot braille cell, thereby including the complete 6-dot cell range. [3] In Unicode, a braille cell does not have a letter or meaning defined. For example, Unicode does not define U+2817 ⠗ BRAILLE PATTERN DOTS-1235 to be "R".
The 64 braille patterns are arranged into decades based on the numerical order of those patterns. The first decade are the numerals 1 through 0, which utilize only the top and mid row of the cell; the 2nd through 4th decades are derived from the first by adding dots to the bottom row; the 5th decade is created by shifting the first decade downwards.
In Braille's original system, the dot patterns were assigned to letters according to their position within the alphabetic order of the French alphabet of the time, with accented letters and w sorted at the end. [11] Unlike print, which consists of mostly arbitrary symbols, the braille alphabet follows a logical sequence.
Braille pattern dots-13456; Braille pattern dots-23456; Braille pattern dots-123456 This page was last edited on 26 September 2023, at 02:01 (UTC). ...
The other symbols may or may not correspond to their Braille values. For example, ⠌ dots 3-4 represents / in Braille ASCII, and this is the Braille slash, but ⠿ dots 1-2-3-4-5-6 represents =, and this is not the equals sign in Braille. Braille ASCII more closely corresponds to the Nemeth Braille Code for mathematics than it does to the ...
The Braille pattern dots-6 ( ⠠) is a 6-dot braille cell with the bottom right dot raised, or an 8-dot braille cell with the lower-middle right dot raised. It is represented by the Unicode code point U+2820, and in Braille ASCII with a comma:, .
In the Japanese kantenji braille, the standard 8-dot Braille patterns 2, 12, 24, and 124 are the 8-dot braille patterns related to Braille pattern dots-1, since the two additional dots of kantenji patterns 01, 17, and 017 are placed above the base 6-dot cell, instead of below, as in standard 8-dot braille.
In all braille systems, the braille pattern dots-0 is used to represent a space or the lack of content. [1] In particular some fonts display the character as a fixed-width blank. However, the Unicode standard explicitly states that it does not act as a space, [ 2 ] a statement added in response to a comment that it should be treated as a space.