(j3.2006) Retro cool to go with your Fortran compiler
Wed Dec 15 07:58:00 EST 2010
I too still have my slide rule, a Pickett purchased in 1955, complete with leather case and belt loop (old-timers will remember the brand, and I see that the thinkgeek reference includes a link to the Pickett slide rule manual). In addition to the usual dual-base log log scales it has square roots, cube roots, sine, tangent (and of course arc sine and arc tangent), and several more scales. A precision instrument (mechanically) but, alas, one can compute with it to only about two significant figures (in some cases you can interpolate close to three significant figures) - guess that was good enough for much early engineering work.
On Dec 15, 2010, at 4:42 AM, Lawrie Schonfelder wrote:
> I still have my 1950s slide rule. It was much used when I was an undergrad but then I found first a
> marchant desk calculator and then a computer called CIRAC (32 instructions, 16 16bit Williams tube
> registers, 1024 16bit word mercury delay line memory, 2millisecond cycle time) and the slide rule
> passed into the back of the cupboard. I actually solved a PDE on the computer before moving on to a
> IBM 1620 with Fortran. Nostalgia!
> Lawrie Schonfelder
> Wirral, UK
>> -----Original Message-----
>> From: j3-bounces at j3-fortran.org [mailto:j3-bounces at j3-fortran.org]On
>> Behalf Of Van Snyder
>> Sent: 14 December 2010 23:54
>> Subject: (j3.2006) Retro cool to go with your Fortran compiler
>> Retro cool to go with your Fortran compiler.
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