Feng Shi <[email protected]> writes: > Dear all, > > I'm learning how to use implicit TS solvers to calculate the flux. The > example code is > http://www.mcs.anl.gov/petsc/petsc-current/src/ts/examples/tutorials/ex10.c.html > I'm dying in understanding Lines 232-255. Is there anyone who knows how to > work this out?
It's chain rule, differentiating the fluxes with respect to the states in each cell.
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