def single_prec(v):
    """แบบ IEE sigle precision format"""
    if len(v) != 32 :
        v+= "0"*(32-len(v))
    v = list(map(int,v))
    return (-1)**v[0] * sum([v[i] * 2 ** (8 - i) for i in range(1, 32)])
def double_prec(v):
    """แบบ IEE double precision format"""
    if len(v) != 64 :
        v+= "0"*(64-len(v))
    v = list(map(int,v))
    return (-1)**v[0] * sum([v[i] * 2 ** (11 - i) for i in range(1, 64)])