👉 In mathematics, a prefatorially defined function is a function that is defined by its value at a single input and can be expressed as a sum of partial derivatives. These functions are often used in calculus to define the derivative or gradient of a function. For example, consider the function f(x) = x^3 + 2x^2 - 4x + 6. This function is defined by its value at any point (x, y), and can be expressed as: f
