This is so well written. I remember being taught these in my first year engineering and I really never understood a lot intuitively. (I could solve numericals a

This is so well written. I remember being taught these in my first year engineering and I really never understood a lot intuitively. (I could solve numericals and clear the course but I did not get it then. Being a CS student, I never had to care about it ever since). I wonder how the world would have been different if all courses were taught this way.