[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 UTC."],[[["\u003cp\u003e\u003ccode\u003eatan2()\u003c/code\u003e calculates the angle formed by a 2D vector represented by its x and y coordinates (left and right inputs respectively).\u003c/p\u003e\n"],["\u003cp\u003eIt returns the angle in radians, ranging from -π to π.\u003c/p\u003e\n"],["\u003cp\u003eThe function is accessed using \u003ccode\u003eee.Number(left).atan2(right)\u003c/code\u003e, where \u003ccode\u003eleft\u003c/code\u003e represents the x-coordinate and \u003ccode\u003eright\u003c/code\u003e represents the y-coordinate.\u003c/p\u003e\n"],["\u003cp\u003eExamples demonstrate how \u003ccode\u003eatan2()\u003c/code\u003e is used to find angles for various points in a 2D plane.\u003c/p\u003e\n"]]],["The `atan2` function calculates the angle of a 2D vector [x, y]. It takes two numeric inputs: `left` as x and `right` as y. The function returns a number representing the angle. For example, `atan2(1, 0)` represents the point (1,0) returning an angle of 0. The point (0,1) `atan2(0,1)` returns an angle of π/2. `atan2(-1,0)` returns π, and `atan2(0,-1)` returns -π/2.\n"],null,["# ee.Number.atan2\n\nCalculates the angle formed by the 2D vector \\[x, y\\].\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------|---------|\n| Number.atan2`(right)` | Number |\n\n| Argument | Type | Details |\n|--------------|--------|-----------------------|\n| this: `left` | Number | The left-hand value. |\n| `right` | Number | The right-hand value. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Left input is x and right input is y, representing point (x,y).\nprint('Atan2 of point (0,0)', ee.Number(0).atan2(0)); // 0\nprint('Atan2 of point (1,0)', ee.Number(1).atan2(0)); // 0\nprint('Atan2 of point (0,1)', ee.Number(0).atan2(1)); // 1.570796326 (π/2)\nprint('Atan2 of point (-1,0)', ee.Number(-1).atan2(0)); // 3.141592653 (π)\nprint('Atan2 of point (0,-1)', ee.Number(0).atan2(-1)); // -1.570796326 (-π/2)\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\nprint('Atan2 of point (0,0):', ee.Number(0).atan2(0).getInfo()) # 0\nprint('Atan2 of point (1,0):', ee.Number(1).atan2(0).getInfo()) # 0\n# 1.570796326 (π/2)\nprint('Atan2 of point (0,1):', ee.Number(0).atan2(1).getInfo())\n# 3.141592653 (π)\nprint('Atan2 of point (-1,0):', ee.Number(-1).atan2(0).getInfo())\n# -1.570796326 (-π/2)\nprint('Atan2 of point (0,-1):', ee.Number(0).atan2(-1).getInfo())\n```"]]
