Sharp Stone <[email protected]> writes: > Hi all, > > In the ex19, specifically from Lines 581-587, about the "invert the system" > part, > > 581: /* invert the system:582: [ dfu / du > 0 0 0 ][yu] = [fu]583: [ 0 dfv / > dv 0 0 ][yv] [fv]584: [ dfo / du dfo / dv > dfo / do 0 ][yo] [fo]585: [ dft / du dft / dv > 0 dft / dt ][yt] [ft]586: by simple > back-substitution587: */ > > I realized u and v are independent variables, but even so, the first two > rows should be both containing dfu/dv and dfv/du terms just like the 3rd > and 4th rows, do I miss some points?
Look at the equations defining the residual (e.g., line 337). Those terms are zero.
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