Predicted 1D and 2D marginalised distributions for the w₀–w_a and/or γ parameters, for four cosmological model: flat w₀w_aCDM (top left); non-flat w₀w_aCDM (top right); flat w₀w_aγCDM (middle and bottom left); and non-flat w₀w_aγCDM (middle and bottom right). This is for the same scenario as Fig. 6, using the same colour coding (where Euclid-only constraints are here in dashed black). Each plot is accompanied by the corresponding FoM or 1σ uncertainties.