Log rules | logarithm rules - RapidTables. com Logarithm rules and propertiesLogarithm Rules The base b logarithm of a number is the exponent that we need to raise the base in order to get the number Logarithm definition Logarithm rules Logarithm problems Complex logarithm Graph of log (x) Logarithm table Logarithm calculator Logarithm definition When b is raised to the power of y is equal x: b y = x Then the base b logarithm of x is