Thanks for all the input.
Whilst I agree that it's not strictly necessary to have the hat over the unit
vectors since I'm not defining anything in a particularly unusual way, it is in
fairly common usage to see this form. Also, if I were to define a unit vector
as:
$\mathbf{\hat{a}}=\frac{\mathbf{a}}{\lvert\lvert\mathbf{a}\rvert\rvert}$
I would have no problems, it's only because i (and j) happen to have a dot on
top that difficulties are encountered. I'm unsure as to how the Soft_Dotted
property should work, since if I do indeed try to do what I'm aiming to do with
a plain i as opposed to \imath, I get a nasty clash.
$\mathbf{\hat{i}}=\frac{\mathbf{i}}{\lvert\lvert\mathbf{i}\rvert\rvert}$
Many thanks,
Nicholas
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