On 4/7/20 4:58 PM, 孙翔 wrote:
Do you mean the Dirichlet boundary condition? I applied the boundary condition
after I form the right-hand side vector. I don't think the boundary condition
will lead to different solutions because the right-hand side vector has been
different before I add the boundary conditions.
"I don't think" is the wrong approach :-) You are seeing something you are not
expecting. In other words, what you "expect" is not happening, and so you need
to let go of what you think is happening -- you need to *verify* that what you
think is happening is happening! That's the whole mind set of debugging
problems :-)
Best
WB
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Wolfgang Bangerth email: [email protected]
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