[sdiy] large numbers

[Vladimir Pantelic]

would you not also need to make your timer run 2^N faster for every N bits of 
resolution you add?

On 13/07/18 20:33, Tim Ressel wrote:
> If you must pry...  ;-)
> 
> 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.
> 
> --tr
> 
> 
> On 7/13/2018 11:30 AM, Richie Burnett wrote:
>> Out of interest, what application requires table lookup of values to a 
>> resolution of better than 1 part in 10 to the 19 !?!?!?
>>
>> -Richie,
>>
>> Sent from my Xperia SP on O2
>>
>> ---- Tim Ressel wrote ----
>>
>>> Verified. I don't relish (or other condiment...) doing that calc
>>> manually 4096 times. But it does tell us that a windoze machine can do
>>> the deed. I wonder if its a matter of floats versus doubles?
>>>
>>> --timmers
>>>
>>>
>>> On 7/13/2018 9:59 AM, Ben Bradley wrote:
>>>> Windows Calculator does about twice that ("In Scientific mode,
>>>> Calculator is precise to 32 significant digits."), though of course
>>>> using it is tedious. If it helps, you can copy-paste operations into
>>>> it. Copy and paste this:
>>>> 2y2r=
>>>> (two to the power of 2 reciprocal - this calculates the square root of
>>>> two) gives:
>>>> 1.4142135623730950488016887242097
>>>> There's a list of keyboard shortcuts somewhere.
>>>>
>>>> If you're using integers, I recall that Python, rather than
>>>> overflowing, will handle arbitrarily large integer values.
>>>>
>>>>
>>>> On Fri, Jul 13, 2018 at 12:42 PM, Tim Ressel <timr at circuitabbey.com> wrote:
>>>>> Hey'all,
>>>>>
>>>>> I need to generate a lookup table with 64 bit values. Usually I use Excel
>>>>> but there is a problem: It only does 14 decimal places. I don't think this
>>>>> is enough. Any suggestions?
>>>>>
>>>>> -- 
>>>>> --Tim Ressel
>>>>> Circuit Abbey
>>>>> timr at circuitabbey.com
>>>>>
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>>> -- 
>>> --Tim Ressel
>>> Circuit Abbey
>>> timr at circuitabbey.com
>>>
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>