short answer: no
you can always use graphical or numeric methods to find the zeros of the function
f(x) = tan(x) - 2
Then there are Taylor Series, etc.
Your best bet is just to use a calculator (online or mechanical), just as you would to fine log(12) or e^3.1 or any other such animal.
Hello, is there any way to calculate arctan (2) without using calcultor?
And what is that way?
2 answers
But anyway, if arctan(2) is the solution to a problem, just leave it as-is. That way you have the exact answer, instead of just an approximation.
And, it's clear what the value is. Saying that θ = 1.107 does not give much insight into where it came from.
And, it's clear what the value is. Saying that θ = 1.107 does not give much insight into where it came from.