def deflections_from_grid(self, grid):
        """
        Calculate the deflection angles at a given set of arc-second gridded coordinates.

        Parameters
        ----------
        grid : grids.RegularGrid
            The grid of (y,x) arc-second coordinates the deflection angles are computed on.
        """
        eta = self.grid_to_grid_radii(grid=grid)
        deflection = np.multiply(2. * self.einstein_radius_rescaled, np.divide(
            np.add(np.power(np.add(self.core_radius ** 2, np.square(eta)), (3. - self.slope) / 2.),
                   -self.core_radius ** (3 - self.slope)), np.multiply((3. - self.slope), eta)))
        return self.grid_to_grid_cartesian(grid=grid, radius=deflection)
def deflections_from_grid(self, grid):
        """
        Calculate the deflection angles at a given set of arc-second gridded coordinates.

        Parameters
        ----------
        grid : grids.RegularGrid
            The grid of (y,x) arc-second coordinates the deflection angles are computed on.
        """
        eta = self.grid_to_grid_radii(grid=grid)
        deflection = np.multiply(2. * self.einstein_radius_rescaled, np.divide(
            np.add(np.power(np.add(self.core_radius ** 2, np.square(eta)), (3. - self.slope) / 2.),
                   -self.core_radius ** (3 - self.slope)), np.multiply((3. - self.slope), eta)))
        return self.grid_to_grid_cartesian(grid=grid, radius=deflection)
def deflections_from_grid ( self , grid ) : eta = self . grid_to_grid_radii ( grid = grid ) deflection = np . multiply ( 2. * self . einstein_radius_rescaled , np . divide ( np . add ( np . power ( np . add ( self . core_radius ** 2 , np . square ( eta ) ) , ( 3. - self . slope ) / 2. ) , - self . core_radius ** ( 3 - self . slope ) ) , np . multiply ( ( 3. - self . slope ) , eta ) ) ) return self . grid_to_grid_cartesian ( grid = grid , radius = deflection )
Calculate the deflection angles at a given set of arc-second gridded coordinates.

        Parameters
        ----------
        grid : grids.RegularGrid
            The grid of (y,x) arc-second coordinates the deflection angles are computed on.
Calculate the deflection angles at a given set of arc - second gridded coordinates .