What is the numpy.arccos() function in Python?
Overview
The numpy.arccos() function in Python is used to determine the inverse sine, element-wise, of a given array.
Syntax
numpy.arccos(x, /, out=None, *, where=True)
Parameter values
The numpy.arccos() function takes the following parameter values:
x: This represents the x-coordinates on a unit circle. In a case where there are arguments, the domain is given as[-1, 1]This is a required parameter value.out: This represents a location where the result is stored. This is an optional parameter value.where: This is the condition over which the input is broadcast. At a given location where this condition isTrue, the resulting array will be set to the ufunc result. Otherwise, the resulting array will retain its original value. This is an optional parameter value.**kwargs: This represents the other keyword arguments.
Return type
The numpy.arccos() function returns the inverse cosine of each element in a given array in radians and in a closed interval [0, pi].
Code example
import numpy as np# creating an arrayx = np.array([[1, 0], [-1, -0.5]])# taking the arccos element-wisemyarray = np.arccos(x)print(myarray)
Code explanation
- Line 1: We import the
numpymodule. - Line 4: We create an array
x, using thearray()method. - Line 7: We implement the
np.arccos()function on the array. Then, we assign the result to a variable calledmyarray. - Line 9: We print the variable
myarrayto the console.