Tutorial Gateway

Python NumPy Trigonometric Functions

by

Python Numpy module has various trigonometric functions such as sin, cos, tan, sinh, cosh, tanh, arcsin, arccos, arctan, arctan2, arcsinh, arccosh, arctanh, radians, degrees, hypot, deg2rad, rad2deg, and unwrap. Use these Python NumPy Trigonometric Functions on both one dimensional and multi-dimensional arrays.

We use the below-shown arrays to demonstrate the Python NumPy Trigonometric Function.

arr1 = np.array([0, 30, 45, 60, 90, 180])
arr1
 
arr2 = np.random.randint(0, 10, size = (10))
arr2
 
arr3 = np.random.randint(10, size = (5, 5))
arr3
 
arr4 = np.random.random((10))
arr4
 
arr5 = np.random.random((5, 5))
arr5
 
arr6 = np.linspace(-1, 1, 10)
arr6

OUTPUT

Python NumPy Trigonometric Functions

Python NumPy Trigonometric Functions Examples

The following are the list of available Python NumPy Trigonometric Functions with an example of each.

Python NumPy sin

Python NumPy sin function returns the sine value of a given array.

np.sin(arr1)
np.sin(arr2)
np.sin(arr3)
np.sin(arr6)

OUTPUT

Python NumPy sin

Python Numpy cos

Python Numpy cos function returns the cosine value of a given array.

np.cos(arr1)
np.cos(arr2)
np.cos(arr3)
np.cos(arr6)

OUTPUT

Python NumPy cos

Python NumPy tan

Python NumPy tan function returns the tangent value of a given array.

np.tan(arr1)
np.tan(arr2)
np.tan(arr3)
np.tan(arr6)

OUTPUT

Python NumPy tan

Python NumPy sinh

Python NumPy sinh function returns the hyperbolic sine value of a given array.

np.sinh(arr1)
np.sinh(arr2)
np.sinh(arr3)

OUTPUT

Python NumPy sinh

Python NumPy cosh

Python NumPy cosh function returns the hyperbolic cosine value of all the elements in a given Python array.

np.cosh(arr1)
np.cosh(arr2)
np.cosh(arr3)

OUTPUT

Python NumPy cosh

Python NumPy tanh

Python NumPy tanh function returns the hyperbolic tangent values of a given array.

np.tanh(arr1)
np.tanh(arr2)
np.tanh(arr3)

OUTPUT

Python NumPy tanh

Python NumPy arcsinh

NumPy arcsinh function returns the hyperbolic arc sine value of a given array.

np.arcsinh(arr1)
np.arcsinh(arr2)
np.arcsinh(arr3)

OUTPUT

Python NumPy arcsinh

Python NumPy arccosh

Python NumPy arccosh function returns the hyperbolic arc cosine value of all the elements in a given array.

np.arccosh(arr1)
np.arccosh(arr2)
np.arccosh(arr3)

OUTPUT

Python NumPy arccosh

Python NumPy arctanh

Python NumPy arctanh function returns the hyperbolic arc tangent values of a given array.

np.arctanh(arr4)
np.arctanh(arr5)
np.arctanh(arr6)

OUTPUT

Python NumPy arctanh

Python NumPy arcsin

Python NumPy arcsin function returns the arc sine values of a given array.

np.arcsin(arr4)
np.arcsin(arr5)
np.arcsin(arr6)

OUTPUT

Python NumPy arcsin

Python NumPy arccos

Python NumPy arccos function returns the given array arc cosine values.

np.arccos(arr4)
np.arccos(arr5)
np.arccos(arr6)

OUTPUT

Python NumPy arccos

Python NumPy arctan

Python Numpy arctan function returns the arc tangent values of an array.

np.arctan(arr1)
np.arctan(arr2)
np.arctan(arr3)

OUTPUT

Python NumPy arctan

Python NumPy arctan2

Python NumPy arctan2 function returns the element-wise arc tangent values of an array. It accepts two arrays as arguments x1 and x2 and returns x1/x2.

np.arctan2(arr2, arr6)
np.arctan2(arr6, arr2)
np.arctan2(arr3, arr5)
np.arctan2(arr5, arr3)

OUTPUT

Python NumPy arctan2

Python NumPy hypot

Python NumPy hypot function returns the hypotenuse of the arguments x1 and x2.

np.hypot(arr2, arr6)
np.hypot(arr3, arr5)

OUTPUT

Python NumPy hypot

Python NumPy radians

The Python numpy radians function converts angles from degrees to radians in an array

np.radians(arr1)
np.radians(arr1 * 30)
np.radians(arr1 * 180)
 
np.radians(arr2 * 90)
np.radians(arr3 * 180)
np.radians(arr4)
np.radians(arr5 * 180)

OUTPUT

Python NumPy radians

Python NumPy degrees

The Python numpy degrees function converts angles from radians to degrees in a given array

np.degrees(arr1)
np.degrees(arr1/30)
np.degrees(arr1/60)

np.degrees(arr2)
np.degrees(arr3/30)
np.degrees(arr4)
np.degrees(arr5)

OUTPUT

Python NumPy degrees

Python NumPy deg2rad

The Python numpy deg2rad function converts from degrees to radians. deg2rad(n) is similar or equal to n * pi / 180 (pi or np.pi holds value 3.14)

np.deg2rad(180)
 
np.deg2rad(arr1)

x = np.array([0, 30, 60, 90, 120, 180, 360])
np.deg2rad(x)

OUTPUT

Python NumPy deg2rad

Python NumPy rad2deg

The Python numpy rad2deg function converts from radians to degrees. rad2deg(n) is similar or equal to 180 * n /  pi (pi =  3.14)

np.rad2deg(5)
 
np.rad2deg(arr2)
np.rad2deg(arr5)
np.rad2deg(arr6)

OUTPUT

Python NumPy rad2deg

Python NumPy unwrap

Python NumPy unwrap function unwraps the values by changing deltas between values. 

np.unwrap(arr2)
np.unwrap(arr3)
np.unwrap(arr4)
np.unwrap(arr5)
np.unwrap(arr6)

OUTPUT

Python NumPy unwrap