Logarithm base change rule. In mathematics the logarithm is the inverse function to exponentiationThat means the logarithm of a given number x is the exponent to which another fixed number the base b must be raised to produce that number xIn the simplest case the logarithm counts the number of occurrences of the same factor in repeated multiplication. On most calculators you obtain the log or ln of a number by entering the number then pressing the log or ln button.
You can then solve the equation.
Therefore 3 is the logarithm of 8 to base 2 or 3 log 2 8. If 2 arguments are passed it computes the logarithm of desired base of argument a numerically value of log alog Base. Eg since 1000 10 10 10 10 3 the logarithm base. Logarithm uses a base number to another number to obtain a resultant number.