Machine Learning, AI, Artificial Intelligence, Deep Learning, Neural Networks.
italics. A scalar is a vector with a single entry. A scalar in python: x = 0.0. Vector: a 1D array of numbers, written in bold. You can “access” elements by using a subscript, eg x_1 is the first element of x. Can be thought of as a point in nD space where n is the number of entries of the vector.