One-to-one is also written as 1-1. Plugging in a number for x will result in a single output for y. Injective One To One Surjective Onto Bijection Functions Explained I Math Videos Relatable Notations A function f is a method which relates elementsvalues of one variable to the elementsvalues of another variable in such a way that the elements of the first variable. . But is still a valid relationship so dont get angry with it. The sawtooth function named after its saw-like appearance is a relatively simple discontinuous function defined as f t t for the initial period from -π to π in the above image. An injective function is also referred to as a one-to-one function. While the concept of a closed functions can technically be applied to both convex and concave functions it is usually applied just to convex functionsTherefore they are also called closed convex functions. Now a general function can be like this. It CAN possib...