r/R   c/R     beta
0.15  0.3088  15.523
0.20  0.3279  16.157
0.25  0.3301  16.544
0.30  0.3292  16.320
0.35  0.3264  15.642
0.40  0.3239  14.684
0.45  0.3236  13.440
0.50  0.3233  12.179
0.55  0.3221  11.059
0.60  0.3207  10.093
0.65  0.3194   9.237
0.70  0.3183   8.534
0.75  0.3173   7.869
0.80  0.3158   7.353
0.85  0.3147   6.956
0.90  0.3098   6.593
0.95  0.2631   5.636
1.00  0.0600   2.910