How to use sine inverse ; cos inverse and tan inverse in a formula question

[enjeti]

Hello:

How do I enter tan-inverse of a variable a/b in CANVAS Formula Question? 

I am defining [a] and [b] and trying to calculate tan-inverse of b/a 

I have tried arctan(b/a) and get an error "unrecognized method arctan" ERROR

Also I tried taninv(b/a) and get the same ERROR

THANK YOU 

[thorine · Accepted solution]

Try atan(b/a)

[thorine · Accepted solution]

Try atan(b/a)

[enjeti · Accepted solution]

Great. Thank you 🙂