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ee.Array.sin
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On an element-wise basis, computes the sine of the input in radians.
| Usage | Returns | Array.sin() | Array |
| Argument | Type | Details | this: input | Array | The input array. |
Examples
Code Editor (JavaScript)
var π = Math.PI;
print(ee.Array([-π]).sin()); // [Almost zero]
print(ee.Array([-π / 2.0]).sin()); // [-1]
print(ee.Array([0]).sin()); // [0]
print(ee.Array([π / 2.0]).sin()); // [1]
print(ee.Array([π]).sin()); // [Almost zero]
var start = -π;
var end = π;
var points = ee.Array(ee.List.sequence(start, end, null, 50));
var values = points.sin();
// Plot sin() defined above.
var chart = ui.Chart.array.values(values, 0, points)
.setOptions({
viewWindow: {min: start, max: end},
hAxis: {
title: 'x',
viewWindowMode: 'maximized',
ticks: [
{v: start, f: '-π'},
{v: 0, f: 0},
{v: end, f: '-π'}]
},
vAxis: {
title: 'sin(x)',
ticks: [
{v: -1, f: -1},
{v: 0, f: 0},
{v: 1, f: 1}]
},
lineWidth: 1,
pointSize: 0,
});
print(chart);
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
import altair as alt
import pandas as pd
π = math.pi
display(ee.Array([-π]).sin()) # [Almost zero]
display(ee.Array([-π / 2.0]).sin()) # [-1]
display(ee.Array([0]).sin()) # [0]
display(ee.Array([π / 2.0]).sin()) # [1]
display(ee.Array([π]).sin()) # [Almost zero]
start = -π
end = π
points = ee.Array(ee.List.sequence(start, end, None, 50))
values = points.sin()
df = pd.DataFrame({'x': points.getInfo(), 'sin(x)': values.getInfo()})
# Plot sin() defined above.
alt.Chart(df).mark_line().encode(
x=alt.X('x', axis=alt.Axis(values=[start, 0, end])),
y=alt.Y('sin(x)', axis=alt.Axis(values=[-1, 0, 1]))
)
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Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["\u003cp\u003e\u003ccode\u003eArray.sin()\u003c/code\u003e calculates the sine of each element within an input array, with the input values expected to be in radians.\u003c/p\u003e\n"],["\u003cp\u003eIt returns a new array containing the calculated sine values for each corresponding element of the original array.\u003c/p\u003e\n"],["\u003cp\u003eThis function is useful for mathematical computations and signal processing tasks on array data within the Earth Engine platform, demonstrated with examples in JavaScript and Python.\u003c/p\u003e\n"]]],[],null,["# ee.Array.sin\n\nOn an element-wise basis, computes the sine of the input in radians.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------|---------|\n| Array.sin`()` | Array |\n\n| Argument | Type | Details |\n|---------------|-------|------------------|\n| this: `input` | Array | The input array. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nvar π = Math.PI;\nprint(ee.Array([-π]).sin()); // [Almost zero]\nprint(ee.Array([-π / 2.0]).sin()); // [-1]\nprint(ee.Array([0]).sin()); // [0]\nprint(ee.Array([π / 2.0]).sin()); // [1]\nprint(ee.Array([π]).sin()); // [Almost zero]\n\nvar start = -π;\nvar end = π;\nvar points = ee.Array(ee.List.sequence(start, end, null, 50));\nvar values = points.sin();\n\n// Plot sin() defined above.\nvar chart = ui.Chart.array.values(values, 0, points)\n .setOptions({\n viewWindow: {min: start, max: end},\n hAxis: {\n title: 'x',\n viewWindowMode: 'maximized',\n ticks: [\n {v: start, f: '-π'},\n {v: 0, f: 0},\n {v: end, f: '-π'}]\n },\n vAxis: {\n title: 'sin(x)',\n ticks: [\n {v: -1, f: -1},\n {v: 0, f: 0},\n {v: 1, f: 1}]\n },\n lineWidth: 1,\n pointSize: 0,\n });\nprint(chart);\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\nimport altair as alt\nimport pandas as pd\n\nπ = math.pi\n\ndisplay(ee.Array([-π]).sin()) # [Almost zero]\ndisplay(ee.Array([-π / 2.0]).sin()) # [-1]\ndisplay(ee.Array([0]).sin()) # [0]\ndisplay(ee.Array([π / 2.0]).sin()) # [1]\ndisplay(ee.Array([π]).sin()) # [Almost zero]\n\nstart = -π\nend = π\npoints = ee.Array(ee.List.sequence(start, end, None, 50))\nvalues = points.sin()\n\ndf = pd.DataFrame({'x': points.getInfo(), 'sin(x)': values.getInfo()})\n\n# Plot sin() defined above.\nalt.Chart(df).mark_line().encode(\n x=alt.X('x', axis=alt.Axis(values=[start, 0, end])),\n y=alt.Y('sin(x)', axis=alt.Axis(values=[-1, 0, 1]))\n)\n```"]]