how do I use log without the base 10?

Question

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how do I change the base of log instead of it being 10?

Guest Apr 27, 2014

+5

Best Answer

log_a(x) = log₁₀(x) / log₁₀(a)

or

log_a(x) = ln(x) / ln(a)

Guest Apr 28, 2014

Guest · Answer 1 · 2014-04-28T12:39:40

log_a(x) = log₁₀(x) / log₁₀(a)

or

log_a(x) = ln(x) / ln(a)