<P> Indian mathematics emerged in the Indian subcontinent from 1200 BCE until the end of the 18th century, after which Indian mathematicians were directly part of the development of global mathematics . In the classical period of Indian mathematics (400 CE to 1600 CE), important contributions were made by scholars like Aryabhata, Brahmagupta, Mahāvīra, Bhaskara II, Madhava of Sangamagrama and Nilakantha Somayaji . The decimal number system in worldwide use today was first recorded in Indian mathematics . Indian mathematicians made early contributions to the study of the concept of zero as a number, negative numbers, arithmetic, and algebra . In addition, trigonometry was further advanced in India, and, in particular, the modern definitions of sine and cosine were developed there . These mathematical concepts were transmitted to the Middle East, China, and Europe and led to further developments that now form the foundations of many areas of mathematics . </P> <P> Ancient and medieval Indian mathematical works, all composed in Sanskrit, usually consisted of a section of sutras in which a set of rules or problems were stated with great economy in verse in order to aid memorization by a student . This was followed by a second section consisting of a prose commentary (sometimes multiple commentaries by different scholars) that explained the problem in more detail and provided justification for the solution . In the prose section, the form (and therefore its memorization) was not considered so important as the ideas involved . All mathematical works were orally transmitted until approximately 500 BCE; thereafter, they were transmitted both orally and in manuscript form . The oldest extant mathematical document produced on the Indian subcontinent is the birch bark Bakhshali Manuscript, discovered in 1881 in the village of Bakhshali, near Peshawar (modern day Pakistan) and is likely from the 7th century CE, or may be a composite text representing three or more stages of development between the 3rd and 10th centuries CE . </P>

Contribution of india in the field of mathematics
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