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Common ash ( Fraxinus excelsior ), a deciduous broad-leaved ( angiosperm) tree. European larch ( Larix decidua ), a coniferous tree which is also deciduous. In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only ...
Bessel function - Wikipedia. Contents. hide. (Top) Applications of Bessel functions. Definitions. Asymptotic forms. Properties. Multiplication theorem. Zeros of the Bessel function. See also. Notes. References. External links. Bessel functions describe the radial part of vibrations of a circular membrane.
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In English, the name of the letter is the long A sound, pronounced /ˈeɪ/. Its name in most other languages matches the letter's pronunciation in open syllables.
The earliest known ancestor of "A" is aleph—the first letter of the Phoenician alphabet, also written 'aleph—where it represented a glottal stop [ʔ], as Phoenician only used consonantal letters. In turn, the ancestor of aleph may have been a pictogram of an ox head in proto-Sinaitic script influenced by Egyptian hieroglyphs, styled as a triangular ...
English
In modern English orthography, the letter ⟨a⟩ represents at least seven different vowel sounds, here represented using the vowels of Received Pronunciation, with effects of ⟨r⟩ ignored and mergers in General Americanmentioned where relevant: 1. the near-open front unrounded vowel /æ/ as in pad 2. the open back unrounded vowel /ɑː/ as in father—merged with /ɒ/ as /ɑ/ in General American—which is closer to its original Latin and Greek sound 3. the open back rounded vowel /ɒ/ (merged with /ɑː/ a...
Other languages
In most languages that use the Latin alphabet, ⟨a⟩ denotes an open unrounded vowel, such as /a/, /ä/, or /ɑ/. An exception is Saanich, in which ⟨a⟩—and the glyph ⟨Á⟩—stands for a close-mid front unrounded vowel /e/.
Other systems
1. In the International Phonetic Alphabet, ⟨a⟩ is used for the open front unrounded vowel, ⟨ä⟩ is used for the open central unrounded vowel, and ⟨ɑ⟩ is used for the open back unrounded vowel. 2. In X-SAMPA, ⟨a⟩ is used for the open front unrounded vowel and ⟨A⟩ is used for the open back unrounded vowel.
When using base-16 notation, ⟨A⟩ is conventionally used as the numeral corresponding to the number 10 in decimal.In algebra, the letter a along with various other letters of the alphabet is often used to denote a variable, with various conventional meanings in different areas of mathematics. In 1637, René Des...In geometry, capital Latin letters are used to denote objects including line segments, lines, and rays A capital A is also typically used as one of the letters to represent an angle in a triangle,..."A" is often used to denote something or someone of a better or more prestigious quality or status: A−, A or A+, the best grade that can be assigned by teachers for students' schoolwork; "A grade"...Related characters in the Latin alphabet
1. ⟨Æ æ⟩: a ligature of ⟨AE⟩originally used in Latin 2. ⟨A⟩ with diacritics: Å å Ǻ ǻ Ḁ ḁ ẚ Ă ă Ặ ặ Ắ ắ Ằ ằ Ẳ ẳ Ẵ ẵ Ȃ ȃ Â â Ậ ậ Ấ ấ Ầ ầ Ẫ ẫ Ẩ ẩ Ả ả Ǎ ǎ Ⱥ ⱥ Ȧ ȧ Ǡ ǡ Ạ ạ Ä ä Ǟ ǟ À à Ȁ ȁ Á á Ā ā Ā̀ ā̀ Ã ã Ą ą Ą́ ą́ Ą̃ ą̃ A̲ a̲ ᶏ 3. Phonetic alphabet symbols related to A—the International Phonetic Alphabet only uses lowercase, but uppercase forms are used in some other writing systems: 3.1. ⟨Ɑ ɑ⟩: Latin alpha, represents an open back unrounded vowelin the IPA 3.2. ⟨ᶐ⟩: Latin small alpha with a ret...
Derived signs, symbols and abbreviations
1. ⟨ª⟩: ordinal indicator 2. ⟨Å⟩: Ångströmsign 3. ⟨∀⟩: turned capital letter A, used in predicate logic to specify universal quantification("for all") 4. ⟨@⟩: At sign 5. ⟨₳⟩: Argentine austral 6. ⟨Ⓐ⟩: anarchy symbol
Ancestor and sibling letters
1. ⟨𐤀⟩: Phoenician aleph, from which the following symbols originally derive 1.1. ⟨Α α⟩: Greek letter alpha, from which the following letters derive 1.1.1. ⟨А а⟩: Cyrillic letter A 1.1.2. ⟨Ⲁ ⲁ⟩: Copticletter alpha 1.1.3. ⟨𐌀⟩: Old Italic A, which is the ancestor of modern Latin A 1.1.3.1. ⟨ᚨ⟩: Runic letter ansuz, which probably derives from old Italic A 1.1.4. ⟨𐌰⟩: Gothicletter aza 2. ⟨Ա ա⟩: Armenian letter ayb
Computing
The Latin letters ⟨A⟩ and ⟨a⟩ have Unicode encodings U+0041 A LATIN CAPITAL LETTER A and U+0061 a LATIN SMALL LETTER A. These are the same code points as were used in ASCII and ISO 8859. There are also precomposed character encodings for ⟨A⟩ and ⟨a⟩ with diacritics, for most of those listed above; the remainder are produced using combining diacritics. Variant forms of the letter have unique code points for specialist use: the alphanumeric symbols set in mathematics and science, Latin alpha in...
Texts on Wikisource:Cumin is the dried seed of the herb Cuminum cyminum, a member of the parsley family.
The dire wolf ( Aenocyon dirus [10] / iːˈnɒsaɪ.ɒn ˈdaɪrəs /) is an extinct canine. The dire wolf lived in the Americas (with a possible single record also known from East Asia) during the Late Pleistocene and Early Holocene epochs (125,000–9,500 years ago). The species was named in 1858, four years after the first specimen had been found.
Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation, mitigate hail or disperse fog. The usual objective is to increase rain or snow, either for its own sake or to prevent precipitation from occurring in days afterward.
Raja Ampat, or the Four Kings, is an archipelago located off of the northwest tip of Bird's Head Peninsula (on the island of New Guinea ), Southwest Papua province, Indonesia. It comprises over 1,500 small islands, cays, and shoals around the four main islands of Misool, Salawati, Batanta, and Waigeo, and the smaller island of Kofiau .
