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Dirk Mittler's Blog

A Journal of my Ongoing Experiences.

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  • Polynomials: I’ve just made a text-based UI, slightly user-friendlier.
  • Popular Memory of Vinyl Records Probably a Shifting Memory
  • Power Failures Today, Downtime
  • Guessing at the discretization, of the Sallen-Key Filter, with Q-Multiplier.
  • Installing Chrome on Old Debian Versions (Redirect from Installing Old Chrome Version on Debian).
  • How the chain rule applies to integral equations.
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Tag: Base-Change

How To Compute a Base-Change in Logarithms

One of the problems people may face in Computer Science, is a CPU only capable of computing a logarithm in one base, say 2, but the need to compute a logarithm in another base, say (e). The way to convert is as follows:

c log2(t) == logb(t)

If (t == b), it follows that:

c log2(b) == logb(b) == 1

Hence,

c = 1 / log2(b)

Dirk

 

Format AsidePosted on October 8, 2018Tags Base-Change, Logarithm1 Comment
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