Minima of the function bessj0
    min. #        x        bessj0(x)    bessj1(x)      DBRENT
      1        3.831710    -0.402759     0.000001    -0.402759
      2       10.173459    -0.249705    -0.000002    -0.249705
      3       16.470631    -0.196465     0.000000    -0.196465
      4       22.760084    -0.167185     0.000000    -0.167185
      5       29.046829    -0.148011     0.000000    -0.148011
      6       35.332306    -0.134211     0.000000    -0.134211
      7       41.617096    -0.123668     0.000000    -0.123668
      8       47.901463    -0.115274     0.000000    -0.115274
      9       54.185555    -0.108385     0.000000    -0.108385
     10       60.469460    -0.102601     0.000000    -0.102601
     11       66.753281    -0.097653     0.000005    -0.097653
     12       73.036896    -0.093358     0.000000    -0.093358
     13       79.320488    -0.089585     0.000000    -0.089585
     14       85.604019    -0.086235     0.000000    -0.086235
     15       91.887505    -0.083234     0.000000    -0.083234
     16       98.170952    -0.080527     0.000000    -0.080527