... above). For the case of a 4 × 4 matrix A, for example, equation (2.3 .1) would look like this:α 11 000α 21 α2200α 31 α32α330α 41 α42α43α44·β 11 β 12 β 13 β 14 0 β22β23β2400β33β34000β44=a 11 a 12 a 13 a 14 a 21 a22a23a24a 31 a32a33a34a 41 a42a43a44(2.3.2)We ... αii(equation 2.3 .11 ) are not stored at all.] In brief,Crout’s method fills in the combined matrix of α’s and β’s,β 11 β 12 β 13 β 14 α 21 β22β23β24α 31 α32β33β34α 41 α42α43β44(2.3 .14 )by ... (2.2.2)–(2.2.4),xN=yNβNNxi= 1 βiiyi−Nj=i +1 βijxji = N − 1, N −2, ,1 (2.3.7)44Chapter 2. Solution of Linear Algebraic Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC...