- #1

- 102

- 21

I am in need of a nudge. My basic math understanding is being called to question by the arctan function.

Two values of arctan(-3) result:

a) In my textbook: 108.43 degrees

b) In my calculator: -71.56 degrees

It's perplexing and my superior has not put in a kind word either.

Would greatly appreciate encouragement.

Best Regards,

sobers