rauntölu

Rauntölur are numbers that can represent a quantity along a continuous line. They encompass both rational and irrational numbers. Rational numbers are those that can be expressed as a fraction p/q, where p and q are integers and q is not zero. Examples include 1/2, -3/4, and 5 (which can be written as 5/1). Irrational numbers, on the other hand, cannot be expressed as a simple fraction. Their decimal representations are non-terminating and non-repeating. Famous examples of irrational numbers include pi (approximately 3.14159...) and the square root of 2 (approximately 1.41421...). The set of all real numbers is often denoted by the symbol R. These numbers are fundamental in mathematics and are used to describe measurements, distances, and many other quantities in the real world. They form the basis of calculus and advanced mathematical concepts. The number line is a visual representation of the real numbers, where each point on the line corresponds to a unique real number.