# i(°)        d_exact     d_approchee  Cx          Cz         Cz/Cx          Cm
  -2.5000     -1.8131     -1.9342      0.0206     -0.0122     -0.5919     -0.0270
  -2.0000      0.7616      0.7829      0.0204      0.0500      2.4474     -0.0252
  -1.5000      0.4617      0.5016      0.0203      0.1059      5.2219     -0.0223
  -1.0000      0.3763      0.4286      0.0202      0.1492      7.3715     -0.0188
  -0.5000      0.3496      0.3716      0.0205      0.2191     10.6878     -0.0218
   0.0000      0.3406      0.3391      0.0207      0.2992     14.4681     -0.0271
   0.5000      0.3384      0.3187      0.0209      0.3877     18.5947     -0.0343
   1.0000      0.3353      0.3067      0.0213      0.4696     22.0469     -0.0401
   1.5000      0.3334      0.2983      0.0219      0.5512     25.1460     -0.0460
   2.0000      0.3415      0.2891      0.0239      0.6814     28.5583     -0.0624
   2.5000      0.3396      0.2850      0.0258      0.7618     29.4814     -0.0683
   3.0000      0.3334      0.2828      0.0277      0.8134     29.3965     -0.0679
   3.5000      0.3277      0.2809      0.0298      0.8618     28.9389     -0.0670
   4.0000      0.3225      0.2794      0.0322      0.9064     28.1141     -0.0657
   4.5000      0.3175      0.2781      0.0351      0.9468     26.9513     -0.0639
   5.0000      0.3127      0.2771      0.0386      0.9820     25.4668     -0.0615