In mathematics, an inequality is a relation that makes a non-equal comparison between two numbers or other mathematical expressions
. It is used to compare two values and show if one is less than, greater than, or simply not equal to another value. There are several different notations used to represent different kinds of inequalities, including strict inequalities (a < b or a > b) and non-strict inequalities (a ≤ b or a ≥ b)
. Inequalities can be solved and graphed, and there are different types of inequalities, such as polynomial inequalities and absolute value inequalities
