nag_prob_beta_dist (g01eec) Example Program Results
   x         a            b            p            q          pdf

 0.2500   1.0000e+00   2.0000e+00   4.3750e-01   5.6250e-01   1.5000e+00
 0.7500   1.5000e+00   1.5000e+00   8.0450e-01   1.9550e-01   1.1027e+00
 0.5000   2.0000e+00   1.0000e+00   2.5000e-01   7.5000e-01   1.0000e+00