The Philosophy Of White Hat
Space, Time and Number in the Brain: Searching for the Foundations of .. The best known of these is Euclid's Elements, dating to roughly 300 BC. Of the Indian texts, the most relevant is the Sthananga Sutra, which also covers number theory as part of a general study of mathematics. During the 600s, negative numbers were in use in India to represent debts. However, in the 12th century in India, Bhaskara gives negative roots for quadratic equations but says the negative value "is in this case not to be taken, for it is inadequate; people do not approve of negative roots". Brahmagupta's Brāhmasphuṭasiddhānta is the first book that mentions zero as a number, hence Brahmagupta is usually considered the first to formulate the concept of zero. In mathematics texts this word often refers to the number zero. In a similar vein, Pāṇini used the null operator in the Ashtadhyayi, an early example of an algebraic grammar for the Sanskrit language . Besides their practical uses...