Numerical results showing the dependence of the prompt emission features on the input parameters. The calculated prompt emission parameters (E_p, E_iso, and L_p) are plotted against the input parameters (γ, B′, , |θ_obs − θ_jet|, and p) for both the on-axis cases (with cross symbols) and the off-axis cases (with circle symbols). For comparison, the power-law indices derived from our analytical solutions are marked correspondingly in each panel.