nag_specfun_mathieu_ang_periodic_real (s22cac) Example Program Results
      parity      ordval           a           x   ce_m(x,q)  ce_m'(x,q)
           0           0     -1.5140      0.0000      0.2026      0.0000
           0           1      2.3792      0.0000      0.6836      0.0000
           0           2      5.1727      0.0000      1.0488      0.0000
           0           3      9.3703      0.0000      1.1283      0.0000
      parity      ordval           a           x   se_m(x,q)  se_m'(x,q)
           1           1     -1.3907      0.0000      0.0000      0.4752
           1           2      3.6722      0.0000      0.0000      1.3843
           1           3      9.1406      0.0000      0.0000      2.5369
           1           4     16.1277      0.0000      0.0000      3.6879