Irrational Numbers

Irrational Numbers, a term applied to those roots of numbers which cannot be accurately expressed by a finite number of figures. For instance, $\backslash sqrt\{2\}$ is an irrational number. If the diameter of a circle is one foot the circumference is an irrational number. Irrational numbers have been defined to be numbers which are incommensurable with unity. They are also termed Surds.