Reference for Wiring version 1.0 Build 0100+ If you have a previous version, use the reference included with your software. If see any errors or have any comments, let us know.
| Name | atan2() |
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| Description | Calculates the angle (in radians) from a specified point to the coordinate origin as measured from the positive x-axis. Values are returned as a float in the range from PI to -PI. The atan2() function is most often used for orienting geometry to the position of the cursor. Note the y-coordinate of the point is the first parameter and the x-coordinate is the second due the the structure of calculating the tangent. | ||||
| Syntax | atan2(y, x);
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| Parameters |
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| Returns | float | ||||
| Usage | Application | ||||
| Related | acos() asin() atan() atan2() cos() cosh() hypot() sin() sinh() tan() tanh() radians() degrees() |
