The Bakhshali Manuscript is a mathematical manuscript written on birch bark which was found near the village of Bakhshali in what is now Pakistan in 1881. The manuscript is incomplete, with only seventy leaves of birch bark, many mere scraps, remaining. Its date is uncertain, but it may be as early as the third or fourth century, which would make it the earliest known use of mathematical zero, predating the work of Brahmagupta in the seventh century. However, other scholars date it much later, after Brahmagupta. A Birch bark document is a document written on pieces of birch bark. ... 0 (zero), alternatively called naught or nought, is both a number and a numeral. ... Brahmagupta (ब्रह्मगुप्त) (598_668) was an Indian mathematician and astronomer. ...
The manuscript gives various algorithms and techniques for a variety of problems, such as taking square roots.