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From: The Natural Philosopher <tnp@invalid.invalid>
Newsgroups: comp.os.linux.advocacy,comp.os.linux.misc
Subject: Re: Rewriting SSA. Is This A Chance For GNU/Linux?
Date: Sun, 6 Apr 2025 01:57:44 +0100
Organization: A little, after lunch
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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


> 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 ...

-- 
"In our post-modern world, climate science is not powerful because it is 
true: it is true because it is powerful."

Lucas Bergkamp