real line

(redirected from Real number line)

real line

[′rēl ′līn]
(mathematics)
A straight line of infinite extent upon which the real numbers are plotted according to their distance in a positive or negative direction from a point arbitrarily chosen as zero. Also known as number line.
References in periodicals archive ?
Similarly complex numbers can be represented as points: not only on the real number line but anywhere on a plane (the complex plane).
For numbers on the real number line, there is a definite sense of order.
Schenk begins with an explanation of the real number line and guides readers through instructions on multiplication division and trigonometric functions where he unveils the mysteries of triangles.
Recall that the real number line consists of all rational and irrational numbers, each representing a point on the line, the distance from the origin to the point.
After all, the real number line is an infinitely long, continuous expanse, while the counting numbers are just isolated milestones along this line.
IN A WORLD WHERE ESTABLISHED religion and political theories have taken a beating and come out sullied by compromises, failures and hypocrisies, the realness of the real number line and the immutability of prime numbers have a strong appeal.
In the complex plane, the Cartesian coordinates relate to the Y axis, designated as the imaginary, and the X axis, designated as the real number line.
Analysis studies functions, the real number line, and the ideas of continuity and limit.