Re: How to measure an angle?


matt271829-news@xxxxxxxxxxx wrote:
> > ABC is the arccossine of the dot product, which you can find
> > with a computer or calculator.
>
> Or trig tables perhaps?

If the point of the question was to avoid use of a
trigonometric function entirely, even in numerical
form, then I guess the answer is "No. Something somewhere
will have to evaluate an inverse trig function."

So far as I know.

- Randy

.

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