r/R   c/R     beta
0.15  0.3225  16.670
0.20  0.3418  16.877
0.25  0.3425  16.896
0.30  0.3419  16.536
0.35  0.3409  15.976
0.40  0.3394  15.008
0.45  0.3374  13.726
0.50  0.3355  12.647
0.55  0.3337  11.692
0.60  0.3325  10.597
0.65  0.3322   9.696
0.70  0.3310   9.005
0.75  0.3300   8.600
0.80  0.3285   8.240
0.85  0.3276   7.788
0.90  0.3253   7.310
0.95  0.2897   6.693
1.00  0.1083   3.239