def blend3(d = 0.0, u = 1.0, s = 0.05):
    """
       blending function polynomial
       d = delta x = xabs - xdr
       u = uncertainty radius of xabs estimate error
       s = tuning scale factor

       returns blend
    """
    d = float(d)
    u = float(u)
    s = min(1.0,float(abs(s))) # make sure positive <= 1.0

    b = 1.0 - s ** ((u * u)/(d * d))

    return b
dataset/ETHPy150Open ioflo/ioflo/ioflo/aid/blending.py/blend3/swapped operands of `/`