Gideon Simpson <[email protected]> writes: > Checking the Jacobian, this is a pretty standard output: > > Testing hand-coded Jacobian, if the ratio is O(1.e-8), the hand-coded > Jacobian is probably correct. > Finite difference Jacobian > Hand-coded Jacobian > Hand-coded minus finite difference Jacobian > 6.08281e-10 = ||J - Jfd||//J|| 0.000151055 = ||J - Jfd|| > > > Things look favorable in terms of relative difference, but the absolute > difference is a bit more suspect.
It likely just means you have big matrix entries (perhaps due to poor nondimensionalization/scaling).
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