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Hi,<br>
<br>
I am using PETSc-SNES matrix free approach, and I would like to know
how to manually set the differencing parameter h. I tried to use the
SNESDefaultMatrixFreeSetParameters2 function but I got an error when
compiling: ‘SNESDefaultMatrixFreeSetParameters2’ was not declared in
this scope.<br>
<br>
Thanks very much in advance.<br>
<br>
Regards,<br>
Ping<br>
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