Drawing The Number Line
The number line is usually represented as being horizontal. Customarily, positive numbers lie on the right side of zero, and negative numbers lie on the left side of zero. An arrowhead on either end of the drawing is meant to suggest that the line continues indefinitely in the positive and negative real numbers, denoted by . The real numbers consist of irrational numbers and rational numbers, as well as the integers, whole numbers, and the natural numbers (the counting numbers).
A line drawn through the origin at right angles to the real number line can be used to represent the imaginary numbers. This line, called imaginary line, extends the number line to a complex number plane, with points representing complex numbers.
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Famous quotes containing the words drawing, number and/or line:
“For later in the vast gloom of cities, only there you learn
How the ideas were good only because they had to die,
Leaving you alone and skinless, a drawing by Vesalius.”
—John Ashbery (b. 1927)
“The Oregon [matter] and the annexation of Texas are now all- important to the security and future peace and prosperity of our union, and I hope there are a sufficient number of pure American democrats to carry into effect the annexation of Texas and [extension of] our laws over Oregon. No temporizing policy or all is lost.”
—Andrew Jackson (1767–1845)
“Anybody who’s been through a divorce will tell you that at one point ... they’ve thought murder. The line between thinking murder and doing murder isn’t that major.”
—Oliver Stone (b. 1946)