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discfunc
fem
fem_h1_norm.m
1
function
res = fem_h1_norm(df)
2
%
function
res = fem_h1_norm(df)
3
%
4
%
function
computing the H1-norm of a discrete fem function
5
6
ressqr = df.dofs(:)' * ...
7
df.df_info.h10_inner_product_matrix * ...
8
df.dofs(:)+ ...
9
df.dofs(:)' * ...
10
df.df_info.l2_inner_product_matrix * ...
11
df.dofs(:);
12
if
ressqr < 0
13
ressqr = 0;
14
end;
15
res = sqrt(ressqr);
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