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郭冠廷's user avatar
郭冠廷's user avatar
郭冠廷's user avatar
郭冠廷
  • Member for 4 years, 4 months
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  • Kaohsiung City Taiwan
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2
Proving that $\int_0^l (\cos \beta_nx-\frac2{\beta_nl}\sin \beta_nx)(\cos \beta_mx-\frac2{\beta_ml}\sin \beta_mx)dx=0$
Jan 25
1
A question in Strauss PDE exercise 9.4.2
Jul 9
0
Can we use Gauss-Seidel method in a not invertable matrix?
Apr 23
0
Prove that $\int_0^l [v_j(x)]^2dx=2$ and $\int_0^l v_j(x)v_{j+1}(x)dx=-1$
Apr 26
0
A question about characteristic surface (PDE)
May 30
0
Diffusion equation with complex coefficient
Jul 10