text: """
      Code by Tae-Hwan Hung(@graykode)
      https://en.wikipedia.org/wiki/Uniform_distribution_(continuous)
  """
  import numpy as np
  from matplotlib import pyplot as plt
  
  def uniform(x, a, b):
  
      y = [1 / (b - a) if a <= val and val <= b
                      else 0 for val in x]
  
      return x, y, np.mean(y), np.std(y)
  
  x = np.arange(-100, 100) # define range of x
  for ls in [(-50, 50), (10, 20)]:
      a, b = ls[0], ls[1]
      x, y, u, s = uniform(x, a, b)
      plt.plot(x, y, label=r'$\mu=%.2f,\ \sigma=%.2f$' % (u, s))
  
  plt.legend()
  plt.savefig('graph/uniform.png')
  plt.show()
  
  