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From: Paul Rubin <no.email@nospam.invalid>
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Subject: Re: embedded forth
Date: Fri, 27 Jan 2017 15:29:58 -0800
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rickman <gnuarm@gmail.com> writes:
> Multipliers are function blocks like anything else.  There are FPGAs
> with over 10,000 multipliers.  Think those need to be rationed?  Pick
> the chip that suits your needs.

Those exist, but are enormous and expensive :).

> There's no such thing as "exact" digital trig solutions unless you
> have an infinitely long word.  What do you mean by exact?

Exact would mean all the bits are correct, though typically an error of
1 ULP (unit in the last place) is ok.