Overview
Da is a consonant of Indic abugidas. In modern Indic scripts, Da is derived from the early "Ashoka" Brahmi letter after having gone through the Gupta letter .
Āryabhaṭa numeration
Aryabhata used Devanagari letters for numbers, very similar to the Greek numerals, even after the invention of Indian numerals. The values of the different forms of द are:
द = 18 (१८)
दि = 1,800 (१ ८००)
दु = 180,000 (१ ८० ०००)
दृ = 18,000,000 (१ ८० ०० ०००)
दॢ = 18 (१८×१०८)
दे = 18 (१८×१०१०)
दै = 18 (१८×१०१२)
दो = 18 (१८×१०१४)
दौ = 18 (१८×१०१६)
Historic Da
There are three different general early historic scripts - Brahmi and its variants, Kharoṣṭhī, and Tocharian, the so-called slanting Brahmi. Da as found in standard Brahmi, was a simple geometric shape, with variations toward more flowing forms by the Gupta . The Tocharian Da did not have an alternate Fremdzeichen form. The third form of da, in Kharoshthi was probably derived from Aramaic separately from the Brahmi letter.
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