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Writing systems are used to record human language, and may be classified according to certain common features.. The usual name of the script is given first; the name of the languages in which the script is written follows (in brackets), particularly in the case where the language name differs from the script name.
The Urdu alphabet (Urdu: اُردُو حُرُوفِ تَہَجِّی, romanized: urdū ḥurūf-i tahajjī) is the right-to-left alphabet used for writing Urdu. It is a modification of the Persian alphabet, which itself is derived from the Arabic script. It has co-official status in the republics of Pakistan, India and South Africa.
The Indian system is decimal (base-10), same as in the West, and the first five orders of magnitude are named in a similar way: one (10 0), ten (10 1), one hundred (10 2), one thousand (10 3), and ten thousand (10 4). For higher powers of ten, naming diverges.
English style guides prescribe writing the percent sign following the number without any space between (e.g. 50%). [sources 1] However, the International System of Units and ISO 31-0 standard prescribe a space between the number and percent sign, [8] [9] [10] in line with the general practice of using a non-breaking space between a numerical value and its corresponding unit of measurement.
A grapheme is the basic functional unit of a writing system. Graphemes are generally defined as minimally significant elements which, when taken together, comprise the set of symbols from which texts may be constructed. [14] All writing systems require a set of defined graphemes, collectively called a script. [15]
Like many Indo-Aryan languages, Hindustani (Hindi-Urdu) has a decimal numeral system that is contracted to the extent that nearly every number 1–99 is irregular, and needs to be memorized as a separate numeral.
The name Urdu was first introduced by the poet Ghulam Hamadani Mushafi around 1780. [29] [30] As a literary language, Urdu took shape in courtly, elite settings. [76] [77] While Urdu retained the grammar and core Indo-Aryan vocabulary of the local Indian dialect Khariboli, it adopted the Perso-Arab writing system, written in the Nastaleeq style.
The Indian numbering system is preferred for digit grouping, although the Western grouping system is far more widely used in Pakistan. When written in words, or when spoken, numbers less than 100,000 are expressed just as they are in Standard English. Numbers including and beyond 100,000 are expressed in a subset of the Pakistani numbering system.