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Angle of Rotation Calculator Online

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An Angle of Rotation Calculator is a specialized tool designed for geometry and physics applications. It helps users determine the angle of rotation needed to transform a point from its original position to a new position on a two-dimensional plane. This calculation is crucial in various fields, such as computer graphics, robotics, and navigation, where precise movement and positioning are required.

Formula of Angle of Rotation Calculator

To calculate the angle of rotation, θ, when you have the original coordinates of a point (x,y)(x,y) and its coordinates after a counter-clockwise rotation, you can use the formula:

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θ = arctan( ((x * sin(θ)) + (y * cos(θ))) / ((x * cos(θ)) - (y * sin(θ))) )

Note: This formula assumes knowledge of the coordinates after rotation and involves solving for the unknown angle θ. It is an iterative process rather than a direct calculation.

General Terms and Applications

Angle of Rotation (Degrees)Angle of Rotation (Radians)DescriptionCommon Applications
00No rotationOriginal position
90π/2Quarter turn counter-clockwiseRotating images, coordinate transforms
180πHalf turnFlipping objects over
2703π/2Three-quarter turn counter-clockwiseRotating images, navigation systems
360Full rotationCompleting a full cycle

Note: This table includes both degrees and radians since different fields may prefer one unit over the other. Radians are often used in mathematics and physics for their convenience in calculations, while degrees are commonly used in education and everyday scenarios.

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Example of Angle of Rotation Calculator

Consider a scenario where you have a point with coordinates (2,3)(2,3) and, after rotation, the point moves to (1,4)(1,4). Using the angle of rotation calculator, we can determine the angle θ required for this transformation. The calculation process would involve substituting the given coordinates into our formula and solving for θ.

Most Common FAQs

What is the angle of rotation?

The angle of rotation is the measure of the degree to which an object or a point is rotated around a fixed point, usually in a counter-clockwise direction.

Can the angle of rotation calculator determine clockwise rotation?

Yes, while the formula is set for counter-clockwise rotation. You can adjust for clockwise rotation by considering the direction of rotation in your calculations or by modifying the input values accordingly.

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