👉 In mathematics, a "postsigmoidal" function is defined as follows: f(x) = 1/x + x^2 The graph of this function is known as a postsigmoid curve. It is a piecewise linear function that passes through two points (0, 0) and (1/4, 3/8). The vertex of the function is at x = -2. In terms of calculus, the derivative of f(x) with respect to x is: f
