def geom_cooling(temp, alpha = 0.95):
    """
    Geometric temperature decreasing procedure allows for temperature variations 
    after every iteration (k).
    It returns a value of temperature such that 
    T(k+1)=alpha*(T)
    
    Parameters
    ----------
    temp: float
          Current temperature.
    
    alpha: float
           Fixed geometric ratio.
    """
    return temp * alpha