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In HTML and XML, a numeric character reference refers to a character by its Universal Character Set/Unicode code point, and uses the format: &#xhhhh;. or &#nnnn; where the x must be lowercase in XML documents, hhhh is the code point in hexadecimal form, and nnnn is the code point in decimal form.
Codes from 160 to 255 can all be created using character entity names. Only a few higher-numbered codes can be created using entity names, but all can be created by decimal number character reference. Character entity references can also have the format &name; where name is a case-sensitive alphanumeric string.
A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name. A numeric character reference uses the format &#nnnn; or &#xhhhh; where nnnn is the code point in decimal form, and hhhh is the code point in hexadecimal form.
Web pages authored using HyperText Markup Language may contain multilingual text represented with the Unicode universal character set.Key to the relationship between Unicode and HTML is the relationship between the "document character set", which defines the set of characters that may be present in an HTML document and assigns numbers to them, and the "external character encoding", or "charset ...
However, if using tools supporting obsolete implementations of HTML, the reference € (Euro sign in the CP-1252 code page) or ¤ (Euro sign in ISO/IEC 8859-15) may work. As another example, if some text was created originally using the MacRoman character set, the left double quotation mark “ will be represented with code point xD2.
Miscellaneous Technical is a Unicode block ranging from U+2300 to U+23FF. It contains various common symbols which are related to and used in the various technical, programming language, and academic professions.
On a computer running the Microsoft Windows operating system, many special characters that have decimal equivalent codepoint numbers below 256 can be typed in by using the keyboard's Alt+decimal equivalent code numbers keys. For example, the character é (Small e with acute accent, HTML entity code é) can be obtained by pressing Alt+1 3 0.
The Latin-1 Punctuation and Symbols subheading contains 32 characters of common international punctuation characters, such as the inverted question and exclamation marks, a middle dot, and symbols such as currency signs, spacing diacritic marks, vulgar fractions, and superscript numbers. [5]