Forecast of cosmological parameters from 1D M_ap, γ-2PCF and their combination in a 100 deg²Euclid-like survey without tomography. Marginalized 2D (1 and 2σ contours) and 1D (full likelihood) constraints are displayed in black for the γ-2PCF, green for 1D M_ap, and purple for their combination. The red crosses and lines indicate the truth. Gray crosses correspond to the 25 simulation points from which the model is built.