**Intro to Logarithms (article) - Khan Academy**
https://www.khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:logs/x2ec2f6f830c9fb89:log-intro/a/intro-to-logarithms

This is expressed by the logarithmic equation , read as "log base two of sixteen is four". Both equations describe the same relationship between the numbers , , and , where is the base and is the exponent. The difference is that while the exponential form isolates the power, , the …

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