



'''simple docstring'''





from __future__ import annotations




def 							lowerCamelCase	(					_snake_case	:    list[float]							):





    '''simple docstring'''


    lowercase__									=    0.00
    lowercase__									=    0
    for resistor in resistors:
        if resistor <= 0:
            lowercase__									=    f'''Resistor at index {index} has a negative or zero value!'''
            raise ValueError(_snake_case							)
        first_sum += 1 / float(_snake_case							)
        index += 1
    return 1 / first_sum




def 							lowerCamelCase	(					_snake_case	:    list[float]							):





    '''simple docstring'''


    lowercase__									=    0.00
    lowercase__									=    0
    for resistor in resistors:
        sum_r += resistor
        if resistor < 0:
            lowercase__									=    f'''Resistor at index {index} has a negative value!'''
            raise ValueError(_snake_case							)
        index += 1
    return sum_r


if __name__ == "__main__":
 import doctest

 doctest.testmod()









'''simple docstring'''





def 							lowerCamelCase	(					_snake_case	:    list							):





    '''simple docstring'''


    if not isinstance(_snake_case  ,_snake_case							):
        raise ValueError("Input series is not valid, valid series - [2, 4, 6]"							)
    if len(_snake_case							) == 0:
        raise ValueError("Input list must be a non empty list"							)
    if len(_snake_case							) == 1:
        return True
    lowercase__									=    series[1] - series[0]
    for index in range(len(_snake_case							) - 1							):
        if series[index + 1] - series[index] != common_diff:
            return False
    return True




def 							lowerCamelCase	(					_snake_case	:    list							):





    '''simple docstring'''


    if not isinstance(_snake_case  ,_snake_case							):
        raise ValueError("Input series is not valid, valid series - [2, 4, 6]"							)
    if len(_snake_case							) == 0:
        raise ValueError("Input list must be a non empty list"							)
    lowercase__									=    0
    for val in series:
        answer += val
    return answer / len(_snake_case							)


if __name__ == "__main__":
 import doctest

 doctest.testmod()




