'Matrix C' 0 1 1 / 1 26 1 48 1 36 / (boundaries of the domain) 0 surfaces 1 simple block: / 1 complex block: 1 / 'END of input data for smooth surfaces' / 'COMPLEX BLOCK' 1 'VP ' 1 (interpolated parameter formally denoted as VP) 1 2 3 0 / (i.e. VP=W(X1,X2,X3), tension=0) 6 10 8 (numbers of gridpoints) 1 6 11 16 21 26 (X1 coordinates) 1 6 12 17 22 27 33 38 43 48 (X2 coordinates) 1 6 11 16 21 26 31 36 (X3 coordinate) 480*0 'END of complex blocks, end of the input data for the model' /