For those who are curious how we can construct such a function, and why it looks so funky on the negative side, I strongly recommend this video https://www.yout

For those who are curious how we can construct such a function, and why it looks so funky on the negative side, I strongly recommend this video https://www.youtube.com/watch?v=v_HeaeUUOnc https://www.youtube.com/watch?v=v_HeaeUUOnc