ee.Number.tan

  • The Number.tan() method computes the tangent of a number assumed to be in radians.

  • It takes a single argument, the input number, and returns a number representing the tangent.

  • Examples show how to compute the tangent of common angles and how to convert degrees to radians for use with the method.

 Computes the tangent of the input in radians.

UsageReturns
Number.tan()Number
ArgumentTypeDetails
this: inputNumberThe input value.

Examples

Code Editor (JavaScript)

// Input angle in radians.
print('Tangent of 0', ee.Number(0).tan());  // 0
print('Tangent of π/2', ee.Number(Math.PI/2).tan());  // 16331239353195370
print('Tangent of π', ee.Number(Math.PI).tan());  // 0 (nearly)

// Convert degrees to radians.
var degrees = 45;
var radians = degrees * (Math.PI/180);
print('Tangent of 45 degrees', ee.Number(radians).tan());  // 1 (nearly)

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

# Input angle in radians.
print('Tangent of 0:', ee.Number(0).tan().getInfo())  # 0
print('Tangent of π/2:',
      ee.Number(math.pi/2).tan().getInfo())  # 16331239353195370
print('Tangent of π:', ee.Number(math.pi).tan().getInfo())  # 0 (nearly)

# Convert degrees to radians.
degrees = 45
radians = degrees * (math.pi/180)
print('Tangent of 45 degrees:',
      ee.Number(radians).tan().getInfo())  # 1 (nearly)