# Python code to demonstrate the working of tan()
   
# importing "math" for mathematical operations 
import math 
  
a = math.pi / 6
   
# returning the value of tangent of pi / 6 
print ("The value of tangent of pi / 6 is : ", end ="") 
print (math.tan(a)) 

# Python program showing 
# Graphical representation of 
# tan() function 
import math
import numpy as np
import matplotlib.pyplot as plt 

in_array = np.linspace(0, np.pi, 10) 

out_array = []

for i in range(len(in_array)):
    out_array.append(math.tan(in_array[i]))
    i += 1

 
print("in_array : ", in_array) 
print("\nout_array : ", out_array) 

# red for numpy.sin() 
plt.plot(in_array, out_array, color = 'red', marker = "o") 
plt.title("math.tan()") 
plt.xlabel("X") 
plt.ylabel("Y") 
plt.show()