https://devzone.nordicsemi.com/f/nordic-q-a/68807/wondering-how-to-use-fabsHello, In my code I am reading from a sensor and want to check if the float value returned is out of range. In order to do so I would like to be able to calculate the absolute value of the float. Using abs() is not an option because it returns an integeren-USTelligent Community 13Fri, 27 Nov 2020 09:05:48 GMThttps://devzone.nordicsemi.com/thread/282212?ContentTypeID=1Fri, 27 Nov 2020 09:05:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:97c4deb7-2ba7-44cc-aacf-bd76f74810b8ovrebekk<p>Hi Aleix</p> <p>Which standard library are you using?</p> <p>fabs() seems to work as expected for me when using the NEWLIB library:</p> <p><pre class="ui-code" data-mode="text">CONFIG_NEWLIB_LIBC=y</pre></p> <p>What if you assign the result of the fabs operation to another variable before you print it?</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/281997?ContentTypeID=1Thu, 26 Nov 2020 10:06:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3e3e846c-87a3-4ff1-9441-081a01f1cd6aKrawlow<p>Indeed (edited: well, it returns 14 bits that are understood as a float). Also, that does not affects the simple example I have posted, which to me has a strange outcome.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/281993?ContentTypeID=1Thu, 26 Nov 2020 09:55:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:55829bd6-719d-463c-bf2f-c7980244b20eawneil[quote userid="82199" url="~/f/nordic-q-a/68807/wondering-how-to-use-fabs"]reading from a sensor and want to check if the float value returned[/quote] <p>Does the sensor really return a float value ?</p><div style="clear:both;"></div>