Work out equations and draw graphs with this useful new tool. In Apple's great 2024 software refresh—specifically iOS 18, iPadOS 18, and macOS 15 Sequoia—a new tool called Math Notes was added ...

Functions The graph of f (x) = x 2 is the same as the graph of y = x 2. Writing graphs as functions in the form f (x) is useful when applying translations and reflections to graphs.

C. E. Rickart, The Maximal Ideal Space of Functions Locally Approximable in a Function Algebra, Proceedings of the American Mathematical Society, Vol. 17, No. 6 (Dec., 1966), pp. 1320-1326 ...