https://devzone.nordicsemi.com/f/nordic-q-a/91373/issues-with-math-functionsHi, I am using SDK 2.0.0. I have two problems in this function. Lets take Vt value as 1420, in one instance. 1. RT2 is calculated as 5076.14. This is incorrect. It should have been 9161.29. 2. I couldn&#39;t find the ln () function (natural logen-USTelligent Community 13Sat, 27 Aug 2022 00:35:19 GMThttps://devzone.nordicsemi.com/thread/383539?ContentTypeID=1Sat, 27 Aug 2022 00:35:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d029e592-df11-463d-9865-62e109ddb6b3kaushalyasat<p>Hi&nbsp;H&aring;kon,</p> <p></p> <p>Many thanks mate, that solved the issue.</p> <p></p> <p>Cheers,</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/383461?ContentTypeID=1Fri, 26 Aug 2022 12:17:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c63d309c-3d98-4d47-a219-5745ba7225edH&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>Could you try to cast your integers to float?</p> <p><pre class="ui-code" data-mode="text">Vt_V = (float)Vt/1000.0f;</pre></p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>