Y and Z EPSILONS from file 
 ../bol4/cali_eps.txt                                                            
 *********************************************
 DY simple: assume that <dz>==0 --> angles 
 *********************************************
 NW NE SW SE
id  1 step 12 23 13   0.001  0.006  0.007 angles:  0.0003 0.0004 0.0003 0.0003
id  2 step 12 23 13   0.004  0.003  0.007 angles:  0.0004 0.0007 0.0005 0.0005
id  3 step 12 23 13  -0.004  0.006  0.003 angles:  0.0007 0.0003 0.0005 0.0005
id  4 step 12 23 13   0.003  0.003  0.006 angles: -0.0002-0.0006-0.0004-0.0004
id  5 step 12 23 13   0.000  0.007  0.007 angles: -0.0005-0.0002-0.0004-0.0004
id  6 step 12 23 13   0.006  0.002  0.008 angles:  0.0006 0.0012 0.0009 0.0009
id  7 step 12 23 13   0.000  0.002  0.003 angles: -0.0001-0.0004-0.0002-0.0002
id  8 step 12 23 13   0.005  0.001  0.005 angles: -0.0002 0.0000-0.0001-0.0001
 *********************************************
  
  
 *********************************************
 DZ and DY from assumption dz_nw_13 is know
 *********************************************
 ASSUMED dz NW step 1 to 3:   0.
 angle NW NE SW SE  0.0003 0.0005 0.0004-0.0009
 South: step 1 to 3 dz SW+ SE+ SW- SE-   0.007  0.025  0.005  0.021
 North: step 1 to 2 dz NW+ NE+ NW- NE-  -0.002 -0.004 -0.003 -0.008
 South: step 1 to 2 dz SW+ SE+ SW- SE-   0.009  0.017  0.007  0.008
 North: step 2 to 3 dz NW+ NE+ NW- NE-   0.002  0.004  0.003  0.008
 South: step 2 to 3 dz SW+ SE+ SW- SE-  -0.002  0.008 -0.002  0.013
 dy  NW NE SW SE with these angles
id  1 step 12 23    0.001  0.006 used angle:  0.0003
id  2 step 12 23    0.004  0.003 used angle:  0.0005
id  3 step 12 23   -0.002  0.004 used angle:  0.0004
id  4 step 12 23    0.010 -0.004 used angle: -0.0009
id  5 step 12 23    0.000  0.007 used angle: -0.0004
id  6 step 12 23    0.006  0.002 used angle:  0.0009
id  7 step 12 23    0.002  0.001 used angle: -0.0003
id  8 step 12 23    0.011 -0.005 used angle: -0.0005
 *********************************************
  
 *********************************************
 Absolute epsilons in A+ layer 2 
dzeps   dyeps dyeps_cor  -0.007  0.030 -0.003
dzeps   dyeps dyeps_cor   0.060  0.009  0.060
dzeps   dyeps dyeps_cor   0.016  0.047  0.010
dzeps   dyeps dyeps_cor   0.012  0.057 -0.031