My experience was similar. I never really understood the point of sin and cos until I used them to draw circles on a TRS-80. And then it's like "Oh, they are ve

My experience was similar. I never really understood the point of sin and cos until I used them to draw circles on a TRS-80. And then it's like "Oh, they are very useful and straightforward functions." And then it made sense why you'd divide a triangle's side length by the hypotenuse, since that's just scaling by the radius.