:

    >>> from scipy import odr
    >>> import numpy as np
    >>> x = np.linspace(0.0, 5.0)
    >>> y = 1.0 * x ** 2 + 2.0 * x + 3.0
    >>> data = odr.Data(x, y)
    >>> odr_obj = odr.ODR(data, odr.quadratic)
    >>> output = odr_obj.run()
    >>> print(output.beta)
    [1. 2. 3.]

    c