Figure 6.
Evolution of inclination angle χ and precession angle ϑ with time for a pulsar with the following parameters: |$\epsilon _x = 1.9\times 10^{-13} I_{45}^{-1}$|, |$\epsilon _y = 2.05\times 10^{-13} I_{45}^{-1}$|, β = 16.5° and for the following initial conditions: P0 = 0.1s, ϑ0 = 40°, φ0 = 45°. Time is measured in evolution time-scales τx.