https://devzone.nordicsemi.com/f/nordic-q-a/9358/how-does-nrf51422-handle-sqrt-n-from-cI am trying to better understand how the nRF51422 handles sqrt(n) coming from C in Keil? Can anyone explain, or link to resources which do? I am having difficulty finding such an explanation. Thanks, J Edit - I mean to ask, is it implementeden-USTelligent Community 13Mon, 21 Sep 2015 19:50:05 GMThttps://devzone.nordicsemi.com/thread/34540?ContentTypeID=1Mon, 21 Sep 2015 19:50:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:67be9fc1-8d9f-44c2-8e90-39c1753d09dbMichael Dietz<p>It depends what you want. Check this post out: <a href="http://www.codeproject.com/Articles/69941/Best-Square-Root-Method-Algorithm-Function-Precisi">www.codeproject.com/.../Best-Square-Root-Method-Algorithm-Function-Precisi</a> I definitely wouldn&#39;t assume that the Keil sqrt function included in the MicroLib is the most efficient though depending on the trade-offs you want.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34539?ContentTypeID=1Mon, 21 Sep 2015 18:09:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e32bb73b-0973-46ab-86ea-6b0509b783aeJFreyWahoo<p>Ok thanks for the response. So, most likely however sqrt(n) is run from #include math.h is already the most efficient way?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34538?ContentTypeID=1Mon, 21 Sep 2015 18:03:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a8853dc6-28a7-469c-80af-14e1b309dba0Susheel Nuguru<p>There is no special hardware to perform the sqrt function in nRF51. It is done in the normal way that ARM cortex-M0 processor would do (as this is the processor inside nRF51). I think in Keil sqrt function is included in the MicroLib that needs to be included into your project.</p><div style="clear:both;"></div>