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1996-11-08 - Re: Sliderules, Logs, and Prodigies

Header Data

From: Derek Bell <dbell@maths.tcd.ie>
To: “Timothy C. May” <cypherpunks@toad.com>
Message Hash: ae9bb78b018c1e37d100c91222d6b62fe1aa929ef3c12b0c165b53dda530e5a4
Message ID: <9611081721.aa12122@salmon.maths.tcd.ie>
Reply To: <v03007803aea873ff3acc@[207.167.93.63]>
UTC Datetime: 1996-11-08 17:22:30 UTC
Raw Date: Fri, 8 Nov 1996 09:22:30 -0800 (PST)

Raw message

From: Derek Bell <dbell@maths.tcd.ie>
Date: Fri, 8 Nov 1996 09:22:30 -0800 (PST)
To: "Timothy C. May" <cypherpunks@toad.com>
Subject: Re: Sliderules, Logs, and Prodigies
In-Reply-To: <v03007803aea873ff3acc@[207.167.93.63]>
Message-ID: <9611081721.aa12122@salmon.maths.tcd.ie>
MIME-Version: 1.0
Content-Type: text/plain


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In message <v03007803aea873ff3acc@[207.167.93.63]>, "Timothy C. May" writes:
>Lucaciewicz, as I recall. His notation was originally that one would add
>two numbers, a and b, as "+ a b." A modified form, adapted for stack
>machines, was to add two numbers with "a b +." Hence, _reverse_ Polish
>notation, but equally sound.

	He also did some work on multi-valued logic, IIRC.

>And for those of you are not LISP or Scheme fans, the language FORTH also
>uses Polish notation. RPN, in fact.

	Yep, FORTH uses it for everything, including IF statements!

	e.g.
	< IF ." The Second on stack is smaller than Top Of Stack"  THEN

	Derek

http://www.maths.tcd.ie/~dbell/key.asc <- my public key here
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