Not the same thing. Twice the unique zero of cos in [0, 2] is provably equal to the circumference of a circle of diameter 1. It's not equal to 3.2 or whatever t

Not the same thing. Twice the unique zero of cos in [0, 2] is provably equal to the circumference of a circle of diameter 1. It's not equal to 3.2 or whatever the Indiana Pi Bill was trying to legislate.