Exercise 7: Trigonometric functions
(15 minutes)
Revise AnalyzeVariables.C to include a histogram of theta.
Note
I’ll make your life a little easier: the math function you want is
TMath::ATan2(y,x), which computes the arctangent of y/x. It’s
better to use this function than TMath::ATan(y/x), because the
ATan2 function correctly handles the case when x=0.
Figure 31: https://xkcd.com/809/ by Randall Munroe