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Number Forms is a Unicode block containing Unicode compatibility characters that have specific meaning as numbers, but are constructed from other characters. They consist primarily of vulgar fractions and Roman numerals .
Such a number is algebraic and can be expressed as the sum of a rational number and the square root of a rational number. Constructible number: A number representing a length that can be constructed using a compass and straightedge. Constructible numbers form a subfield of the field of algebraic numbers, and include the quadratic surds.
The Indian system groups digits of a large decimal representation differently than the US and other English-speaking regions. The Indian system does group the first three digits to the left of the decimal point. But thereafter, groups by two digits to align with the naming of quantities at multiples of 100. [2]
1. Between two numbers, either it is used instead of ≈ to mean "approximatively equal", or it means "has the same order of magnitude as". 2. Denotes the asymptotic equivalence of two functions or sequences. 3. Often used for denoting other types of similarity, for example, matrix similarity or similarity of geometric shapes. 4.
So too are the thousands, with the number of thousands followed by the word "thousand". The number one thousand may be written 1 000 or 1000 or 1,000; larger numbers are written for example 10 000 or 10,000 for ease of reading. European languages that use the comma as a decimal separator may correspondingly use the period as a thousands separator.
(mega-is not derived from a number word, for example.) Similarly, some are only derived from words for numbers inasmuch as they are word play. (Peta-is word play on penta-, for example. See its etymology for details.) The root language of a numerical prefix need not be related to the root language of the word that it prefixes.
If the value is "on", the output is an ordinal number, otherwise it is a cardinal number. us: Optional. If the value is "on", the output of numbers does not include "and" to separate hundreds from smaller values, nor to separate thousands from hundreds. This accords with American usage as described at English numerals.
An article's variety of English does not uniquely determine its formatting of numbers. Other considerations – such as conventions used in mathematics, science, and engineering – may also apply. In general, choice and order of formats and conversions is a matter of editorial discretion and consensus at the article.