2,851
edits
Changes
Jump to navigation
Jump to search
Line 1:
Line 1: − +
no edit summary
A '''logarithm''' of a [[number]] is the [[exponential]] power to which you raise the base to obtain the number.
A '''logarithm''' of a [[number]] is the [[exponential]] power to which you raise the base to obtain the number.
For high school [[algebra]], the most common base is "10".
For high school [[algebra]], the most common logarithms are base-10 (the common log) and base ''[[e]]'' (the [[natural logarithm|natural log]]).
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: