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In common usage, the prefix dipolar, dative or coordinate merely serves to indicate the origin of the electrons used in creating the bond. For example, F 3 B ← O(C 2 H 5) 2 ("boron trifluoride (diethyl) etherate") is prepared from BF 3 and :O(C 2 H 5) 2, as opposed to the radical species [•BF 3] – and [•O(C 2 H 5) 2] +.
HTML and XML provide ways to reference Unicode characters when the characters themselves either cannot or should not be used. 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.
Edward Otho Cresap Ord (October 18, 1818 – July 22, 1883), frequently referred to as E. O. C. Ord, was an American engineer and United States Army officer who saw action in the Seminole War, the Indian Wars, and the American Civil War.
Any framed knot has a self-linking number obtained by computing the linking number of the knot C with a new curve obtained by slightly moving the points of C along the framing vectors. The self-linking number obtained by moving vertically (along the blackboard framing) is known as Kauffman's self-linking number.
The residual gain is low (K = R C /R E < 1). The circuit is insensitive to the input voltage variations and the transistor stays firmly in active linear region. The input resistance is high because of the series negative feedback. The cutoff transistor breaks the connection between its input and output.
The alternative tokens allow programmers to use C language bitwise and logical operators which could otherwise be hard to type on some international and non-QWERTY keyboards. The name of the header file they are implemented in refers to the ISO/IEC 646 standard, a 7-bit character set with a number of regional variations, some of which have ...
In Slovene, it occurs only in names and surnames, mainly from Croatian (e.g. Handanović), and denotes the same sound as Č, i.e. the voiceless palato-alveolar affricate. The Serbian Cyrillic alphabet equivalent is Ћ (23rd letter). Macedonian uses Ќ as a partial equivalent (24th letter).
This list of all two-letter combinations includes 1352 (2 × 26 2) of the possible 2704 (52 2) combinations of upper and lower case from the modern core Latin alphabet.A two-letter combination in bold means that the link links straight to a Wikipedia article (not a disambiguation page).