Re: Rewriting SSA. Is This A Chance For GNU/Linux?

The Natural Philosopher <tnp@invalid.invalid> writes:

On 05/04/2025 22:57, Richard Kettlewell wrote:

The Natural Philosopher <tnp@invalid.invalid> writes:

  Analogue multiplication is the holy grail and can be dome using the
  exponential characteristics of bipolar transistors
>
https://www.analog.com/media/en/technical-documentation/data-sheets/ADL5391.pdf

The electronics there is far beyond me but how general (and how
reliable) can this be made?
 

Well it isn't very general. It takes two voltages between on and one
an multiplies them together.
That's what it does.
>
Going from digits to volts is relatively fast and easy, but the
reverse is not so true

Right, probably not a fit for my application, then.

The operations I’m currently interested in are modular multiplication,
addition and subtraction with comparatively small moduli (12-bit and
23-bit, currently). It’s a well-undertood problem with digital
computation, of course, but I’m curious about whether there’s another
option here.

 
That flew over my head Richard. Advanced maths is not my forte ...

You do modular arithmetic whenever you do times and dates - informally,
it’s the same thing as they way minutes and seconds wrap around from 59
to 0, hours from 23 to 0, etc.

Putting it together into something useful is a bit more than that,
though, indeed, and a persistent concern is how to do it faster, hence
keeping an eye out for additional technology options.

--
https://www.greenend.org.uk/rjk/