Baudhayana sutras
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The Baudhāyana sūtras (Sanskrit: बौधायन सूत्रस् ) are a group of Vedic Sanskrit texts which cover dharma, daily ritual, mathematics and is one of the oldest Dharma-related texts of Hinduism that have survived into the modern age from the 1st-millennium BCE. They belong to the Taittiriya branch of the Krishna Yajurveda school and are among the earliest texts of the genre.
The Baudhayana sūtras consist of six texts:
- the Śrautasûtra, probably in 19 Praśnas (questions),
- the Karmāntasûtra in 20 Adhyāyas (chapters),
- the Dwaidhasûtra in 4 Praśnas,
- the Grihyasutra in 4 Praśnas,
- the Dharmasûtra in 4 Praśnas and
- the Śulbasûtra in 3 Adhyāyas.
The Baudhāyana Śulbasûtra is noted for containing several early mathematical results, including an approximation of the square root of 2 and the statement of the Pythagorean theorem.