(n, a)
return a
Closest integer to the square root of the positive integer n.  a is
    an initial approximation to the square root.  Any positive integer
    will do for a, but the closer a is to the square root of n the
    faster convergence will be.
Closest integer to the square root of the positive integer n.  a is
    an initial approximation to the square root.  Any positive integer
    will do for a, but the closer a is to the square root of n the
    faster convergence will be.
Closest integer to the square root of the positive integer n . a is an initial approximation to the square root . Any positive integer will do for a but the closer a is to the square root of n the faster convergence will be .
def _sqrt_nearest(n, a):
    """Closest integer to the square root of the positive integer n.  a is
    an initial approximation to the square root.  Any positive integer
    will do for a, but the closer a is to the square root of n the
    faster convergence will be.

    """
    if n <= 0 or a <= 0:
        raise ValueError("Both arguments to _sqrt_nearest should be positive.")

    b=0
    while a != b:
        b, a = a, a--n//a>>1
    return a
def _sqrt_nearest ( n , a ) : if n <= 0 or a <= 0 : raise ValueError ( "Both arguments to _sqrt_nearest should be positive." ) b = 0 while a != b : b , a = a , a - - n // a >> 1 return a