One way to do this is to use Wolfram Alpha to find the convergents of. If you click this link, you’ll see that I entered. Convergents(Log(10,5.1264),15) A little explanation is in order: Convergents, predictably, is the Mathematica command for finding the convergents of a given number. Log(10,5.1264) is the base-10 logarithm of 5.1264.