NumPy - arcsin() function
The NumPy arcsin() function is used to calculate arc sine (inverse sine) of given value. The returned value will be in the range -𝜋/2 through 𝜋/2.
Syntax
numpy.arcsin(x, out=None)
Parameters
x |
Required. Specify array (array_like) containing elements in range [-1, 1], of which the arc sine is calculated. |
out |
Optional. Specify a location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. |
Return Value
Returns the inverse sine of each element in x.
Example:
In the example below, numpy arcsin() function is used to calculate the inverse sine of each element present in array sinArr.
import numpy as np
Arr = np.array([0, 30, 60, 90])
#converting the angles in radians
Arr = Arr*np.pi/180
sinArr = np.sin(Arr)
inv_sinArr = np.arcsin(sinArr)
print("The sin value of angles:")
print(sinArr)
print("The inverse of the sin value (in radians):")
print(inv_sinArr)
print("The inverse of the sin value (in degrees):")
print(np.degrees(inv_sinArr))
The output of the above code will be:
The sin value of angles: [ 0. 0.5 0.8660254 1. ] The inverse of the sin value (in radians): [ 0. 0.52359878 1.04719755 1.57079633] The inverse of the sin value (in degrees): [ 0. 30. 60. 90.]
❮ NumPy - Functions
