Announcement: All noncommercial projects registered to use Earth Engine before
April 15, 2025 must
verify noncommercial eligibility to maintain Earth Engine access.
ee.Number.log
Stay organized with collections
Save and categorize content based on your preferences.
Computes the natural logarithm of the input.
| Usage | Returns | Number.log() | Number |
| Argument | Type | Details | this: input | Number | The input value. |
Examples
Code Editor (JavaScript)
print(ee.Number(Math.pow(Math.E, -1)).log()); // -1
print(ee.Number(1).log()); // 0
print(ee.Number(Math.E).log()); // 1
Python setup
See the
Python Environment page for information on the Python API and using
geemap for interactive development.
import ee
import geemap.core as geemap
Colab (Python)
import math
print(ee.Number(pow(math.e, -1)).log().getInfo()) # -1
print(ee.Number(1).log().getInfo()) # 0
print(ee.Number(math.e).log().getInfo()) # 1
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["\u003cp\u003eComputes the natural logarithm (base \u003cem\u003ee\u003c/em\u003e) of a given number.\u003c/p\u003e\n"],["\u003cp\u003eReturns 0 for an input of 1, 1 for an input of \u003cem\u003ee\u003c/em\u003e (Euler's number), and -1 for an input of 1/\u003cem\u003ee\u003c/em\u003e.\u003c/p\u003e\n"],["\u003cp\u003eAccepts a single numeric input using \u003ccode\u003eee.Number\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eProvides usage examples in JavaScript, Python with \u003ccode\u003egeemap\u003c/code\u003e, and Python in Colab.\u003c/p\u003e\n"]]],[],null,["# ee.Number.log\n\nComputes the natural logarithm of the input.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------|---------|\n| Number.log`()` | Number |\n\n| Argument | Type | Details |\n|---------------|--------|------------------|\n| this: `input` | Number | The input value. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nprint(ee.Number(Math.pow(Math.E, -1)).log()); // -1\nprint(ee.Number(1).log()); // 0\nprint(ee.Number(Math.E).log()); // 1\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\nimport math\n\nprint(ee.Number(pow(math.e, -1)).log().getInfo()) # -1\nprint(ee.Number(1).log().getInfo()) # 0\nprint(ee.Number(math.e).log().getInfo()) # 1\n```"]]