Number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. In mathematics, the notion of a number has been extended over the centuries to include 0, negative numbers, rational numbers such as one half, real numbers such as the square root of 2 and π, and complex numbers which extend the real numbers with a square root of −1. You can visit https://wsdcspace.com/videos/ for more videos like this. | Space Discoverer