OK, I've seen related questions which indicate that you only bold the main symbol and not subscripts, and a few other almost related questions. But what about when you are using a bold math symbol dotted?
That is, I have a letter which represents a vector. We've been writing vectors as bold letters, i.e
We represent the first time derivative of this symbol by putting a dot on it. Should I bold the dot or not? That is choice:
Edit: All things equal, I prefer the way choice 2 looks.