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Number line with drawed numbers 0 and 1. Horizontal ray. Number line with two points x < y. Number line with -2 and 3 as vectors. Addition on the number line with the ...
The first mention of the number line used for operation purposes is found in John Wallis's Treatise of Algebra (1685). [2] [page needed] In his treatise, Wallis describes addition and subtraction on a number line in terms of moving forward and backward, under the metaphor of a person walking.
Number line with -2 and 3 as vectors. Addition on the number line with the example 1+2=3. ... You are free: to share – to copy, distribute and transmit the work;
Date/Time Thumbnail Dimensions User Comment; current: 02:26, 1 November 2021: 750 × 50 (2 KB): Mikhail Ryazanov: minuses instead of hypens: 08:50, 27 September 2019
A number-line visualization of the algebraic addition 2 + 4 = 6. A "jump" that has a distance of 2 followed by another that is long as 4, is the same as a translation by 6. A number-line visualization of the unary addition 2 + 4 = 6. A translation by 4 is equivalent to four translations by 1.
Date/Time Thumbnail Dimensions User Comment; current: 23:56, 29 November 2018: 689 × 225 (18 KB): Mikus: The line continues indefinitely in the positive and negative directions according to the rules of geometry which define a line without endpoints as an infinite line, a line with one endpoint as a ray, and a line with two endpoints as a line segment.