EC - U
    0           0       1
    0           1       1
    0.053051    1       1
    0.053051    0       1
    0.106103    0       1

EC - V
    0           0       1
    0           1       1

u -> 
     7.461282
     9.424777
    11.388273
    13.351768
    15.315264
    17.278759
    19.242255

v -> 
   -1.047197
    1.047197
    3.141592
    5.235987

coefficients:
    1.25 *cosU,     1 *cosU*cosV,  -1.25 *e(05)*cosU,    -1 *e(05)*cosU*cosV
    
    -1.25 *sinU,   -1 *sinU*cosV,   1.25 *e(0.5)*sinU,   +1 *e(05)*sinU*cosV
    
    7,          -1 *sinV,       +1 *e(05)*sinV,         -1 *e(10)
