My math teacher back in school blew my mind once with this:
“If you ever get a funny number like 6.28318530717958647 just divide that by π and see if that fixes it. It equals 2, so the answer isn’t 6.283… it’s just 2π and that’s how you should write your answer. Sometimes you get 1.0471975 well guess what? π/3. Simple. Pi isn’t a variable, it is a number and you can just leave it in that form for your answers.”
My math teacher back in school blew my mind once with this:
“If you ever get a funny number like 6.28318530717958647 just divide that by π and see if that fixes it. It equals 2, so the answer isn’t 6.283… it’s just 2π and that’s how you should write your answer. Sometimes you get 1.0471975 well guess what? π/3. Simple. Pi isn’t a variable, it is a number and you can just leave it in that form for your answers.”