angular momentum april xxanthippe consistent you undid some of my corrections on the angular momentum page the problem is that in a single formula the letter is used as an index and as the imaginary number at the same time while you and i might not have too many problems understanding this it is a incredibly confusing for people who do not know the topic so well for example look at the exponential function and ask yourself who wound understand that notation correctly to be correct and consistent one would have to change all indexes