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Undo revision 850784 by JeffL1 (talk)
For example, the logarithm base 10 of 100 is the power to which you raise 10 to obtain 100. Because 10 to the power of 2 equals 100, the logarithm of 100 is 2:
For example, the logarithm base 10 of 100 is the power to which you raise 10 to obtain 100. Because 10 to the power of 2 equals 100, the logarithm of 100 is 2:
log 100 = 2 because 10<sup>2</sup> = 100
There are formulas for converting logarithms having different bases. To find a logarithm with base ''b'' using another base ''c'', use the following identity:
: <math> \log_b(x) = \frac{\log_c(x)}{\log_c(b)} </math>
: <math> \log_b(x) = \frac{\log_c(x)}{\log_c(b)} </math>