terminal ray
Let an angle whose in radians is θ be placed the Cartesian plane such that one of its rays R1 corresponds to the nonnegative x axis and one can go from the point (1,0) to the point that is the intersection of the other ray R2 of the angle with the circle x2+y2=1 by traveling exactly θ units on the circle. (If θ is positive, the distance should be traveled counterclockwise; otherwise, the distance |θ| should be traveled clockwise. Also, note that “other ray” is used quite loosely, as it may also correspond to the nonnegative x axis also.) Then R2 is the terminal ray of the angle.
The picture below shows the terminal ray R2 of the angle θ=2π3.
Title | terminal ray |
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Canonical name | TerminalRay |
Date of creation | 2013-03-22 16:06:11 |
Last modified on | 2013-03-22 16:06:11 |
Owner | Wkbj79 (1863) |
Last modified by | Wkbj79 (1863) |
Numerical id | 12 |
Author | Wkbj79 (1863) |
Entry type | Definition |
Classification | msc 51-01 |
Related topic | Trigonometry![]() |
Related topic | CyclometricFunctions |