Legendre Polynomials       
    N   M          X              Actual        PLGNDR(N,M,X)
    1   0     0.100000E+01     0.100000E+01     0.100000E+01
   10   0     0.100000E+01     0.100000E+01     0.100000E+01
   20   0     0.100000E+01     0.100000E+01     0.100000E+01
    1   0     0.707107E+00     0.707106E+00     0.707107E+00
   10   0     0.707107E+00     0.115112E+00     0.115112E+00
   20   0     0.707107E+00    -0.193065E+00    -0.193065E+00
    1   0     0.000000E+00     0.000000E+00     0.000000E+00
   10   0     0.000000E+00    -0.246094E+00    -0.246094E+00
   20   0     0.000000E+00     0.176197E+00     0.176197E+00
    2   2     0.707107E+00     0.150000E+01     0.150000E+01
   10   2     0.707107E+00    -0.688843E+01    -0.688839E+01
   20   2     0.707107E+00     0.842319E+02     0.842319E+02
    2   2     0.000000E+00     0.300000E+01     0.300000E+01
   10   2     0.000000E+00     0.270703E+02     0.270703E+02
   20   2     0.000000E+00    -0.740027E+02    -0.740028E+02
   10  10     0.707107E+00     0.204601E+08     0.204603E+08
   20  10     0.707107E+00    -0.133551E+13    -0.133551E+13
   10  10     0.000000E+00     0.654729E+09     0.654729E+09
   20  10     0.000000E+00    -0.161205E+13    -0.161205E+13