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This change was made because using markup does not give a good graphic approximation of fractions (compare markup 3 / 4 with precomposed ¾). The change also makes the superscript letters useful for ordinal indicators, more closely matching the ª and º characters. However, it makes them incorrect for normal superscript and subscript, and so ...
Superscripts and Subscripts is a Unicode block containing superscript and subscript numerals, mathematical operators, and letters used in mathematics and phonetics. The use of subscripts and superscripts in Unicode allows any polynomial, chemical and certain other equations to be represented in plain text without using any form of markup like HTML or TeX.
Despite these differences, all reduced-size glyphs go by the same generic terms subscript and superscript, which are synonymous with the terms inferior letter (or number) and superior letter (or number), respectively. Most fonts that contain superscript/subscript will have predetermined size and orientation that is dependent on the design of ...
For example, an en dash is entered using ⌥ Opt+-; an em dash (—) is entered using ⇧ Shift+ ⌥ Opt+-. Also on a Macintosh pressing and holding certain letters (the vowels and a few other letters) brings up a pop-up menu of related special characters, such as accented versions of vowels, which can be clicked on or selected numerically.
The Unicode Consortium and the ISO/IEC JTC 1/SC 2/WG 2 jointly collaborate on the list of the characters in the Universal Coded Character Set.The Universal Coded Character Set, most commonly called the Universal Character Set (abbr. UCS, official designation: ISO/IEC 10646), is an international standard to map characters, discrete symbols used in natural language, mathematics, music, and other ...
If you’ve ever found yourself confused about the difference between a dash and a hyphen, and when to use a hyphen, you’re far from alone. Now that you’ve got that rule straightened out ...
Subscripts and superscripts should be wrapped in <sub> and <sup> HTML tags, respectively, with no other formatting info, with some exceptions (see below). The {} and {} templates are useful shortcuts to the HTML markup. Do not use the Unicode subscripts and superscripts ² and ³, or XML/HTML character entity references (² etc.).
Text shaping is the process of converting text to glyph indices and positions as part of text rendering. [1] It is complementary to font rendering as part of the text rendering process; font rendering is used to generate the glyphs, and text shaping decides which glyphs to render and where they should be put on the image plane. [2]