Indian Mathematics

• The term "Sulba Sutra"can be understood as "Cord Rule," referring to a stretched rope or cord employed forlength measurement.
• Abu Rayhan al-Biruni, an Iranian scholar born in Uzbekistan in 973, visited India multiple times. During his visits, which spanned beyond the 1030s, al-Biruni studied the origins of the numerical system he encountered in the country, including the Brahmi numerals that had been in use since the 3rd century BC
• The Gupta numerals became popular when the Gupta dynasty ruled over the Magadha state in Northeastern India from the early 4th century to the late 6th century. Subsequently, they changed and turned into a new version called the Nagari numerals in the 7th century but still continuously evolving until the 11th century.

  
• The name Nagari suggests the writing of the gods and was considered as the most beautiful among other variations developed. As depicted in the figure 4, zero is already included. Mayans and Americans already had a symbol of zero and it was believed that it was adopted by the Arabs. They later on spread this from different parts of the world such as Devangari, West Arab Gobar, and Spain.

  
• Brahmagupta was an Indian mathematician and astronomer. He is the author of two early works on mathematics and astronomy: the Brāhmasphuṭasiddhānta, a theoretical treatise, and the Khaṇḍakhādyaka, a more practical text. 

  
• Aryabhata (born 476, possibly Ashmaka or Kusumapura, India) astronomer and the earliest Indian mathematician whose work and history are available to modern scholars. He is also known as Aryabhata I or Aryabhata the Elder to distinguish him from a 10th-century Indian mathematician of the same name.

  
• The first time Indians used the symbol for zero was discovered on a stone tablet at the Chaturbhuj Temple in Gwalior, India. This inscription dates back to the year 876.
• The zero symbol was present in two numbers carved into the text: 270 hastas (land) and 50 garlands used for temple offerings.