In calculus and most other branches of mathematics beyond practical geometry, angles are universally measured in radians. This is because radians have a mathematical "naturalness" that leads to a more elegant formulation of a number of important results.
Most notably, results in analysis involving trigonometric functions are simple and elegant when the functions' arguments are expressed in radians.
Although the radian is a unit of measure, it is a dimensionless quantity.
2π radians equals one turn which is 360 degrees.
This page uses content from Wikipedia. The original article was at Radians. The list of authors can be seen in the page history. As with the Math Wiki, the text of Wikipedia is available under the Creative Commons Licence. |
Community content is available under CC-BY-SA unless otherwise noted.