.arctan()

In NumPy, the .arctan() method calculates the inverse tangent of the elements in an array and returns a new array containing the calculated values. The values are in radians and lie in the range -pi/2 to pi/2. By understanding this method, developers can effectively work with trigonometric calculations and geometric problems in NumPy.

Syntax

numpy.arctan(arr, out=None, where=True)

• arr: The array whose inverse tangent is to be calculated.
• out: The array to be used for storing the result. If not provided or set to None, a new array is returned.
• where: A boolean array or condition that specifies the elements for which the inverse tangent is to be calculated. If not provided, it defaults to True for all the elements.
  • If the condition is True for a specific element, the inverse tangent of that element is calculated.
  • If the condition is False for a particular element, that element remains unchanged.

Example

The following example demonstrates the usage of the .arctan() method:

import numpy as np

# Creating an array
arr = np.array([0, 1, 2, -1, -2])

# Calculating the inverse tangent of the elements in the array
res = np.arctan(arr)

print(res)

The above code produces the following output:

[ 0.          0.78539816  1.10714872 -0.78539816 -1.10714872]

Codebyte Example

The following codebyte example shows the use of the .arctan() method:

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