ee.Array.multiply

  • Array.multiply() performs element-wise multiplication between two arrays or an array and a number.

  • The left-hand operand is the array the method is called on, and the right-hand operand can be an array or a number.

  • If both operands are arrays, they must have the same number of elements.

  • The result is a new array with the same dimensions as the inputs, where each element is the product of the corresponding elements in the inputs.

  • If either operand is empty, the result is an empty array.

 On an element-wise basis, multiplies the first value by the second.

UsageReturns
Array.multiply(right)Array
ArgumentTypeDetails
this: leftArrayThe left-hand value.
rightArrayThe right-hand value.

Examples

Code Editor (JavaScript)

print(ee.Array([1]).multiply(0));  // [0]
print(ee.Array([1]).multiply(1));  // [1]

print(ee.Array([1]).multiply([0]));  // [0]
print(ee.Array([1]).multiply([1]));  // [1]

// [-1,8,-2,4.8]
print(ee.Array([1, -2, 2, 4]).multiply([-1, -4, -1, 1.2]));

// [-1,2,-2,-3]
print(ee.Array([1, -2, 2, 3]).multiply(-1));

var empty = ee.Array([], ee.PixelType.int8());
print(empty.multiply(empty));  // []

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)

display(ee.Array([1]).multiply(0))  # [0]
display(ee.Array([1]).multiply(1))  # [1]

display(ee.Array([1]).multiply([0]))  # [0]
display(ee.Array([1]).multiply([1]))  # [1]

# [-1, 8, -2, 4.8]
display(ee.Array([1, -2, 2, 4]).multiply([-1, -4, -1, 1.2]))

# [-1, 2, -2, -3]
display(ee.Array([1, -2, 2, 3]).multiply(-1))

empty = ee.Array([], ee.PixelType.int8())
display(empty.multiply(empty))  # []