Example image of eyePlorer eyePlorer map for 'Radian': Rad (unit) Angle Degree (angle) Mathematics Dimensionless quantity Degree symbol SI derived unit SI supplementary unit Solid angle Steradian Arc (geometry) Circle Radius Subtended angle Roger Cotes Belfast James Thomson (engineer) Queen's University Belfast William Thomson, 1st Baron Kelvin Thomas Muir University of St Andrews Grad (angle) Calculus Mathematical analysis Trigonometric functions Limit of a function Euler's formula Exponential function Taylor series Polar coordinate system Spherical coordinate system Physics Angular velocity Angular acceleration Phase (waves) SI prefix Gunnery Beam divergence Laser Angular mil Angular displacement Phaser (comics) Radian (band) Three-phase Trigonometric number Turn (geometry) Atan2 Electrical length Electrostatic ion cyclotron wave Grand design spiral galaxy