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  2. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.

  3. List of two-dimensional geometric shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_two-dimensional...

    2.2 Not composed of circular arcs. 3 See also. 4 References. Toggle the table of contents. ... Henagon – 1 side; Digon – 2 sides; Triangle – 3 sides Acute triangle;

  4. Two-dimensional space - Wikipedia

    en.wikipedia.org/wiki/Two-dimensional_space

    A two-dimensional space is a mathematical space with two dimensions, meaning points have two degrees of freedom: their locations can be locally described with two coordinates or they can move in two independent directions. Common two-dimensional spaces are often called planes, or, more generally, surfaces. These include analogs to physical ...

  5. Modern Arabic mathematical notation - Wikipedia

    en.wikipedia.org/wiki/Modern_Arabic_mathematical...

    It is contested that the usage of Latin x in maths is derived from the first letter ش šīn (without its dots) of the Arabic word شيء šayʾ(un), meaning thing. [2] (X was used in old Spanish for the sound /ʃ/). However, according to others there is no historical evidence for this. [3] [4] ص: From the Arabic letter ص ṣād

  6. Help:Displaying a formula - Wikipedia

    en.wikipedia.org/wiki/Help:Displaying_a_formula

    The use of LaTeX in a piped link or in a section heading does not appear in blue in the linked text or the table of content. Moreover, links to section headings containing LaTeX formulas do not always work as expected. Finally, having many LaTeX formulas may significantly increase the processing time of a page.

  7. Urdu Lughat - Wikipedia

    en.wikipedia.org/wiki/Urdu_Lughat

    The dictionary was edited by the honorary director general of the board Maulvi Abdul Haq who had already been working on an Urdu dictionary since the establishment of the Urdu Dictionary Board, Karachi, in 1958. [1] [2] [3] Urdu Lughat consists of 22 volumes. In 2019, the board prepared a short concise version of the dictionary in 2 volumes.

  8. Arabic numerals - Wikipedia

    en.wikipedia.org/wiki/Arabic_numerals

    The 2, 8, and 9 resemble Arabic numerals more than Eastern Arabic numerals or Indian numerals. Leonardo Fibonacci was a Pisan mathematician who had studied in the Pisan trading colony of Bugia , in what is now Algeria , [ 15 ] and he endeavored to promote the numeral system in Europe with his 1202 book Liber Abaci :

  9. Ligature (writing) - Wikipedia

    en.wikipedia.org/wiki/Ligature_(writing)

    In writing and typography, a ligature occurs where two or more graphemes or letters are joined to form a single glyph.Examples are the characters æ and œ used in English and French, in which the letters a and e are joined for the first ligature and the letters o and e are joined for the second ligature.