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# numpy.tan () in Python

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Parameters :

`  array:  [array_like] elements are in radians.  out:  [optional] shape same as array. `
` 2pi Radians = 360 degrees tan (x) = sin (x) / cos (x) `

Return:

` An array with trignometric sine of x for all x ie array elements `

Code # 1: Work

 ` # Python program explaining ` ` # tan () function `   ` import ` ` numpy as np ` ` import ` ` math `   ` in_array ` ` = ` ` [` ` 0 ` `, math.pi ` ` / ` ` 4 ` `, ` ` 3 ` ` * < / code> np.pi / 2 , math.pi / 6 ] `` print ( "Input array:" , in_array)   tan_Values = np.tan (in_array) print ( "Tan values:" , tan_Values) `

Output:

` Input array: [0, 0.7853981633974483, 4.71238898038469, 0.5235987755982988] Tan values: [0.00000000e + 00 1.00000000e + 00 5.44374645e + 15 5.77350269e-01] `

Code # 2: Graphical representation

< p>

 ` # Show Python program ` ` # Graphical view ` ` # tan () function ` ` `  ` import ` ` numpy as np ` ` import ` ` matplotlib.pyplot as plt `   ` in_array ` ` = ` ` np.linspace (` ` 0 ` `, np.pi, ` ` 12 ` `) ` ` out_array ` ` = ` ` np.tan (in_array) `   ` print ` ` (` ` "in_array:" ` `, in_array) ` ` print ` ` (` ` "out_array:" ` `, out_array) `   ` # red for numpy.tan () ` ` plt.plot (in_array, out_array, color ` ` = ` ` ’red’ ` `, marker ` ` = ` ` "o" ` `) ` ` plt.title (` ` "numpy.tan ()" ` `) ` ` plt.xlabel (` ` "X" ` `) ` ` plt.ylabel (` ` "Y" ` `) ` ` plt.show () `

Output:

` in_array: [0. 0.28559933 0.57119866 0.856798 1.14239733 1.42799666 1.71359599 1.99919533 2.28479466 2.57039399 2.85599332 3.14159265] out_array: [0.00000000e + 00 2.93626493e-01 6.42660977e-01 1.15406152e + 00 2.18969456e + 00 6.95515277e + 00 -6.955.100697e + 00.15 6.42660977e-01 -2.93626493e-01 -1.22464680e-16] `

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