20 x or log2x 2. Formula and laws of logarithms. Use the LOG Function to calculate the logarithm of a number to a specified base.
You can use the Mathway widget below to practice solving logarithmic equations or skip the widget and continue with the lesson.
It can be computed using Arg xiy atan2 y x. 20 x or log2x 2. Its value is restricted to -p p. It is expressed as log 10 X and if any expression is not given with the base then the base 10 is considered.