How can you not know what "acos()" is? That's arccos() or cos^-1()
Christopher Brown3,007 Points
Hey, now, leave Guil alone ;) He's been one of my only friends during this pandemic lol
Jason Zouikri782 Points
It seemed as if he was joking. Anyhow, it is rarely used by many... a book writer for instance. I thought it was a bit uplifting to have Guil give a different mood to his speech in the sentence. I was a math major and I forget what it was.