Brahmagupta revolutionized both math and astronomy in the 7th century. His writings on the number zero treated the concept as a number that could be inserted into equations, and not as a stand-in for a "lack" of something else. He also dealt with the concept of negative numbers, referring to them as "debt."
Brahmagupta And The Concept Of Zero
Key Facts In This Video
Categorically, zero is an even number. 01:19
In Florence during the Crusades, the use of the number zero was banned because it was thought to be connected to the devil. 02:28
Instead of using a symbol for zero, Babylonians would insert a space. 05:01
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