Zeros of J0(x), J1(x)

n x0n x0n / π x1n x1n / π x2n x2n / π
1  2.4048255579 0.76547974962  3.8317060433 1.21966991453  5.13562 1.63472
2  5.5200767359 1.75709499753  7.0155867290 2.23313061324  8.41724 2.67929
3  8.6537307490 2.75456804979 10.1734681353 3.23831548426 11.6198 3.69871
4 11.7915365528 3.75336265807 13.3236956617 4.24106404963 14.7960 4.70970
5 14.9309190992 4.75265915909 16.4706299757 5.24276435294 17.9598 5.71679
6 18.0710648969 5.75219861054 19.6158592418 6.24392192266 21.1170 6.72175
7 21.2116372721 6.75187384584 22.7600843804 7.24475986867 24.2701 7.72542
8 24.3524719901 7.75163258747 25.9036725106 8.24539504860 27.4206 8.72824
9 27.4934794708 8.75144632113 29.0468285172 9.24589267931 30.5692 9.73048
10 30.6346067248 9.75129817986 32.1896805165 10.2462935415   33.7165 10.7323  
n → ( n1/4 ) π n1/4 → ( n + 1/4 ) π n + 1/4 → ( n + 3/4 ) π n + 3/4
Out[18]= { {1, 5.13562, 1.63472}, {2, 8.41724, 2.67929}, {3, 11.6198, 3.69871}, {4, 14.796, 4.7097}, {5, 17.9598, 5.71679}, {6, 21.117, 6.72175}, {7, 24.2701, 7.72542}, {8, 27.4206, 8.72824}, {9, 30.5692, 9.73048}, {10, 33.7165, 10.7323} }