Taking The Logarithm
Logarithm, Taking The
the operation of finding the logarithm of a numerical, algebraic, or other expression. Taking the logarithm is one of two operations that are the inverse of raising to a power. If ab = c, then and b = logac. Taking the logarithm is used in practical computations to reduce the operations of multiplication, division, raising to a power, and extraction of a root to the operations of addition, subtraction, multiplication, and division. For example, in order to approximate we may use the relationship log (1/3) log 2 + (1/3) log sin 50° and then tables of logarithms.