Re: [PIC] Easiest way to find the inverse of a 16-bit integer

On Mon, December 8, 2025 4:26 pm, RussellMc wrote:
> Perplexity suggests small look up table then refined by Newton Rapson for
>  rapid convergence.
>
> https://www.perplexity.ai/search/algorithms-for-1-x-for-16-bit-Q77Z0QO_QS
> WGPRQyEXlFrg
>
>
>
> Russell.

That looks similar to the approach at
https://pic.hallikainen.org/techref/microchip/math/div/recip32k-ng.htm .

Harold



>
>
> On Tue, Dec 9, 2025, 12:17 PM Dwayne Reid <[email protected]>
> wrote:
>
>
>> Good day to all.
>>
>>
>> As part of my current project, I need to find the inverse of a 16-bit
>> binary integer.  That is: 1/X.
>>
>> I was going to dig out my old division routines but was thinking there
>> may be an easier way to go.
>>
>> Suggestion greatly appreciated.
>>
>>
>> Many thanks!
>>
>>
>> dwayne --
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