A = 1 + B + B + ...   

C1 -- First index of files to treat  (70) ,  
S1 -- Step in index of file names  (71)
N -- Number of projections (72)
W -- Width of picture (73)
H -- Height of picture (74)
B -- Size of projection (number of points) (75)
V9 -- Vertical size of section (76)
V7 -- Offset from Bottom  (77)
V3 -- Offset from Left (78)        O=2*(V7*W+V3)
B1 -- Total size of picture to treat horizontally == B*i(79), i(79) -- size of point in projection
X8, Y8 -- X, Y coord of the rotation axis  (80) (81)
/\ -- Sigma for Noice damping (82)
/\ -- Background correction  (83)
N7 --  Number of topograms (layers)  (84)
V8 -- Vertical step in layers (85)   
V1 -- Maximum value  (86)
V0 -- Minimum value (87)
/\ -- Byte offset in the files (88)
M -- index of operation (89)    M1
maximum value 
projection