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Old   August 28, 2012, 15:46
Question Question about FEM
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lnk
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lnk
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Hi everyone,

May I ask why if I use 1D Laplace equation as weighting function on equidistant grid, it will be same as FDM with the centered-difference scheme?

Best,
lnk

Last edited by lnk; August 28, 2012 at 17:29.
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Old   August 28, 2012, 15:57
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Filippo Maria Denaro
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Quote:
Originally Posted by lnk View Post
Hi everyone,

May I ask why if I use 1D Laplace equation as weighting function on equidistant grid, it will be same as FDM with the centered differential scheme?

Best,
lnk
because second order FD on equidistant grid can be seen as particular form of FEM ...
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