

from __future__ import annotations



def       UpperCAmelCase__  (     lowerCamelCase   ):
  lowercase    :Any      	=						0.00
  lowercase    :Any      	=						0
  for resistor in resistors:
    if resistor <= 0:
      lowercase    :Optional[Any]      	=						F"Resistor at index {index} has a negative or zero value!"
      raise ValueError(_lowercase   )
    first_sum += 1 / float(_lowercase   )
    index += 1
  return 1 / first_sum



def       UpperCAmelCase__  (     lowerCamelCase   ):
  lowercase    :str      	=						0.00
  lowercase    :Optional[Any]      	=						0
  for resistor in resistors:
    sum_r += resistor
    if resistor < 0:
      lowercase    :str      	=						F"Resistor at index {index} has a negative value!"
      raise ValueError(_lowercase   )
    index += 1
  return sum_r


if __name__ == "__main__":
     import doctest

     doctest.testmod()









def       UpperCAmelCase__  (     lowerCamelCase   ):
  return 10 - x * x



def       UpperCAmelCase__  (     lowerCamelCase,			lowerCamelCase   ):
  # Bolzano theory in order to find if there is a root between a and b
  if equation(lowerCamelCase   ) * equation(lowerCamelCase   ) >= 0:
    raise ValueError("Wrong space!"   )

  lowercase    :Optional[int]      	=						a
  while (b - a) >= 0.01:
    # Find middle point
    lowercase    :Optional[Any]      	=						(a + b) / 2
    # Check if middle point is root
    if equation(lowerCamelCase   ) == 0.0:
      break
    # Decide the side to repeat the steps
    if equation(lowerCamelCase   ) * equation(lowerCamelCase   ) < 0:
      lowercase    :Any      	=						c
    else:
      lowercase    :List[Any]      	=						c
  return c


if __name__ == "__main__":
     import doctest

     doctest.testmod()

     print(bisection(-2, 5))
     print(bisection(0, 6))



