[sdiy] large numbers

Michael E Caloroso mec.forumreader at gmail.com
Sun Jul 15 06:15:36 CEST 2018

I inherited a system at work that uses Python.

I've been building and maintaining systems for 25+ years in my career
and in my professional opinion Python is not a very good language.


On 7/14/18, ASSI <Stromeko at nexgo.de> wrote:
> On Friday, July 13, 2018 8:33:42 PM CEST Tim Ressel wrote:
>> I am playing with using a 64 bit accumulator in a DCO (NCO?) to fix the
>> top jitter problem. The notion is that increased resolution in the
>> increment value will cause less top jitter.
> In that particular case, you are most certainly trying to solve the wrong
> problem (increasing the resolution of the phase accumulator beyond
> reasonable)
> using the wrong tool (Excel, which uses double floating point numbers, so
> 53bits of mantissa)  …unless you've somehow figured out how to run your NCO
> at
> several dozen GHz.
> Regards,
> Achim.
> --
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