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.
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