e ku mphamvu, ndi logarizimu yachibadwa

$\displaystyle e^{x}$ ndi cholembedwa cha chikasu pamwamba pa batani la LN. Pa chitsanzo ichi, pemphani madijiti 3 ofunika: dinani , , kuti mupeze Sci, ndi . Mukulowetsa $\displaystyle e^{5} \times 2$. Dinani ndi , ndipo lembani mphamvu 5. Dinani kuti mutuluke mu mphamvu, kenako , lembani 2, ndi : 2.97×10|^:2, imene ndi 297. $\displaystyle \ln$ ndi batani la LN lenilenilo: dinani , lembani 90, , ndi : 4.50×10|^:0, kapena 4.50. Kenako bwererani ku kalembedwe wamba ka nambala: dinani , , , ndi .

▶ Onani sitepe iyi mu vidiyo (39:23)