Comparison of numerically evaluated  ⟨ γγγ ⟩ (x,y) and  ⟨ γγγ^∗ ⟩ (x,y) with their analytical toy models described in this section adopting α = 0.05. “Re” and “Im” indicate the real and imaginary parts of the shear correlation functions. Left panels: the functions are evaluated at x = 0.25k   e^−iπ/3 and y = 0.17k   e^iπ/8 for different values of k; right panels: the functions are evaluated at x = 0.75   e^−iπ/3 and y = 0.45   e^iφ for 50 equally spaced φ values.