Hello

1st time user, working in the formula question quiz portion. All my calculations come out great but when i add an arctan on the following equation, I get the following error?

arctan((((-c*sin(((d-b)*0.017453302)*2)) / ((-a)+(-c*cos(((d-b)*0.017453302)*2))) / (2)) * 0.17453302)

**"Cannot read property 'token' of undefined"**

Is the equation too long? To trouble shoot I submitted a arctan(3) equation and it functioned fine is it having difficulty with the size of the quation?

Hi Adam,

Looks like you have an unmatched parenthesis - you can solve it by either removing the first open parenthesis immediately following arctan( or by adding a closing parenthesis to the end of your statement:

or