default_vector.py 文件源码

def add_scal_vec(self, val, vec):
        """
        Perform in-place addition of a vector times a scalar.

        Parameters
        ----------
        val : int or float
            scalar.
        vec : <Vector>
            this vector times val is added to self.
        """
        if self._vector_info._under_complex_step:
            r_val = np.real(val)
            i_val = np.imag(val)
            for set_name, data in iteritems(self._data):
                data += r_val * vec._data[set_name] + i_val * vec._imag_data[set_name]
            for set_name, data in iteritems(self._imag_data):
                data += i_val * vec._data[set_name] + r_val * vec._imag_data[set_name]
        else:
            for set_name, data in iteritems(self._data):
                data += val * vec._data[set_name]