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radian <a radian; radians> N

radian

radian frequency COMMUNIC

solid radian GEOM

radian per second TECH

Monolingual examples (not verified by PONS Editors)

English
One turn is 2 radians, and one radian is 180/ degrees, or about 57.2958 degrees.
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The radian is abbreviated "rad", though this symbol is often omitted in mathematical texts, where radians are assumed unless specified otherwise.
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Angles in polar notation are generally expressed in either degrees or radians (2 rad being equal to 360).
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Therefore, in a right-angled triangle, the two non-right angles total 90 (/2 radians), so each of these angles must be in the range of (0,90) as expressed in interval notation.
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The full arc of a semicircle always measures 180 (equivalently, radians, or a half-turn).
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The gimbal was powered hydraulically and was capable of changing pitch and yaw at a rate of 1 radian per second or roll at 2 radians per second.
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Radian-scale protractors measure angles in radians.
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This formula is used for recursive generation of cos ("nx") for integer values of "n" and arbitrary "x" (in radians).
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The oscillation can be made to represent a binary digit by the choice between two stationary phases radians (180 degrees) apart.
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When radians are used angles are considered as dimensionless.
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