https://devzone.nordicsemi.com/f/nordic-q-a/82843/failed-to-printf-float-valuehardware : nRF52840DK-52840 SDK : NCSV1.7.1 IDE:Visual Studio Code I wanted to printf float value , so I set CONFIG_CBPRINTF_FB_SUPPORT=y in my prj.conf file, my application code succeeded to printf float value. then I wanted ot use sqrt and acosen-USTelligent Community 13Fri, 17 Dec 2021 15:21:28 GMThttps://devzone.nordicsemi.com/thread/344191?ContentTypeID=1Fri, 17 Dec 2021 15:21:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:74e979de-fb56-4956-a416-0239d3a3e30bovrebekk<p>Hi</p> <p>That&#39;s great news, I will consider this case resolved then <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/344049?ContentTypeID=1Fri, 17 Dec 2021 06:24:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bbecbce1-fabc-4974-9135-c2b1b2235b34sixuanlu&amp;sky<p>Hi OVREBEKK</p> <p>printk works for printing out float value</p> <p>Thanks a lot</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/343992?ContentTypeID=1Thu, 16 Dec 2021 16:07:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:da4b352c-b304-4316-8b5c-301fe8df955bovrebekk<p>Hi&nbsp;</p> <p>It should work if you use printk instead of printf.&nbsp;</p> <p>Could you try this and see if it solves your problem?</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>