[Elecraft] 32 bit Elecraft Utility Apps
Fred Jensen
k6dgw at foothill.net
Fri Apr 13 16:14:13 EDT 2018
Details, details ... 128 or 120, their both greater than 64 [yes, it is
120]. It's a long way to the moon and truncation errors in the
numerical integration summed to unacceptable levels on the UNIVAC 1108
[64-bit DP FP] machines. I just couldn't pass up the chance to point
out that "newest isn't always *that* new." [:-))
<rhetoricalquestion>Speaking of "newest," I haven't turned on my Win10
laptop in several weeks [maybe a month or a little more]. I did at
breakfast today, it is now lunchtime and it's still applying updates ...
apparently 1 at a time. Why can't it do 4 at a time, one in each
core?</rhetoricalquestion>
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
On 4/13/2018 12:48 PM, brian wrote:
> My failing memory seems to recall that the CDC6600 used 60 bit math
> for floating point single precision operations.
>
> https://en.wikipedia.org/wiki/CDC_6600 seems to confirm that.
>
> They were great machines, till the 7600 then the Cray computers showed
> up...
>
> It was interesting to bring these machines to their knees by physics
> calculations that took days to run. They had to be run on weekends to
> keep the rest of the lab happy.
>
> 73 de Brian/K3KO
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