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1. ^ As of Unicode version 15.1. The Egyptian Hieroglyphs Unicode block has 94 standardized variants defined to specify rotated signs: [3] Variation selector-1 (VS1) (U+FE00) can be used to rotate 39 signs by 90°:
The mapping can also be computed by adding together the hexadecimal values, seen at right, of the dots raised. So the pattern with dots 1-2-5 raised would yield 1 16 +2 16 +10 16 = 13 16. Whether computed directly in hexadecimal, or indirectly via binary, the result is added to 2800 16, the offset for the Braille Patterns Unicode block.
Optical character recognition. Optical character recognition or optical character reader ( OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and billboards in a landscape ...
Background. The distinction made by Unicode between character and glyph variant is somewhat problematic in the case of the runes; the reason is the high degree of variation of letter shapes in historical inscriptions, with many "characters" appearing in highly variant shapes, and many specific shapes taking the role of a number of different characters over the period of runic use (roughly the ...
Link color. Links should clearly be identifiable as links to readers. Refrain from implementing colored links that may impede user ability to distinguish links from regular text, or color links for purely aesthetic reasons. See the guides to editing articles for accessibility at contrast and navbox colors. This help page is a how-to guide.
Miscellaneous Technical is a Unicode block ranging from U+2300 to U+23FF, which contains various common symbols which are related to and used in the various technical, programming language, and academic professions. For example: Symbol ⌂ (HTML hexadecimal code is ⌂) represents a house or a home. Symbol ⌘ (⌘) is a "place of interest" sign.
Unicode text is processed and stored as binary data using one of several encodings, which define how to translate the standard's abstracted codes for characters into sequences of bytes. The Unicode Standard itself defines three encodings: UTF-8, UTF-16, and UTF-32, though several others exist.
Binary-to-text encoding. A binary-to-text encoding is encoding of data in plain text. More precisely, it is an encoding of binary data in a sequence of printable characters. These encodings are necessary for transmission of data when the communication channel does not allow binary data (such as email or NNTP) or is not 8-bit clean.