Radian
volume
British pronunciation/ɹˈeɪdiən/
American pronunciation/ɹˈeɪdiən/

"radian" 的定义和意义

Radian
01

弧度

a unit for measuring angles, defined by the angle made when the radius of a circle is laid along its edge
example
例子
examples
Trigonometric functions involving angles in radians often yield results containing multiples of pi.
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