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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.
Visa requirements for Singapore citizens are administrative entry restrictions by the authorities of other states which are imposed on citizens of Singapore. As of 2025, holders of Singapore passports have visa-free or visa-on-arrival access to a total of 193 countries and territories, ranking the Singapore passport first in the world as per ...
The hhhh for hexadecimal digits may mix uppercase and lowercase letters, though uppercase is the usual style. However the XML and HTML standards restrict the usable code points to a set of valid values, which is a subset of UCS/Unicode code point values, that excludes all code points assigned to non-characters or to surrogates, and most code ...
Hexspeak is a novelty form of variant English spelling using the hexadecimal digits. Created by programmers as memorable magic numbers, hexspeak words can serve as a clear and unique identifier with which to mark memory or data. Hexadecimal notation represents numbers using the 16 digits 0123456789ABCDEF.
Hexadecimal 0041 is decimal 65, the code point for the letter 'A'. The colon separates the code point from the bitmap. In this example, the glyph is 8 pixels wide, so the bit string is 32 hexadecimal digits long. The bit string begins with 8 zeros, so the top 4 rows will be empty (2 hexadecimal digits per 8 bit byte, with 8 bits per row for an ...
In the table below, the column "ISO 8859-1" shows how the file signature appears when interpreted as text in the common ISO 8859-1 encoding, with unprintable characters represented as the control code abbreviation or symbol, or codepage 1252 character where available, or a box otherwise. In some cases the space character is shown as ␠.
The box-drawing characters are arranged relative to their corresponding letter keys on the Atari keyboard, appearing 64 code points earlier than the corresponding uppercase letter. For example, ┌, ┬, and ┐ are the graphics characters found on the top left Q, W, and E keys, and appear 64 code points before those uppercase letters in ATASCII.
As a result, IBM created Code page 1124. ISO-8859-5 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. The Windows code page for ISO-8859-5 is code page 28595 a.k.a. Windows-28595. [3] IBM assigned code page 915 to ISO-8859-5 until that code page was extended.