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Další část třetího cvičení. Adresáře .vectordesigner jsou moje zdrojo…
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…vé soubory k pdf-kům.
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snilard committed Apr 6, 2011
1 parent d4de4be commit 28187ac
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18 changes: 16 additions & 2 deletions cviceni_NUM.tex
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\usepackage{amsthm}
\usepackage{latexsym}

\usepackage{ulem}
\usepackage{graphicx}


\newtheorem{definition}{Definice}
\newtheorem{theorem}{Věta}
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$$ - \frac{1}{h} \left( p_{i + \frac{1}{2}} \frac{u_{i+1} - u_i}{h} - p_{i - \frac{1}{2}}
\frac{u_i - u_{i-1}}{h} \right) + qu_i = f_i \text{ na } \omega_h$$
$$ u_0 = \gamma_1;\ u_m = \gamma_2 $$
$$ p_{i \pm \frac{1}{2}} = p\left(a + \left(i \pm \frac{1}{2}\right)h \right) \quad \rightarrow O(h^2)$$
$$ p_{i \pm \frac{1}{2}} = p\left(a + \left(i \pm \frac{1}{2}\right)h \right) \quad
\rightarrow O(h^2)$$
\begin{enumerate}
\item ~\\ \includegraphics{mexson1.pdf}
$$ (pu_{\overline{x}})_x = \frac{(pu_{\overline{x}})_{i+1} - (pu_{\overline{x}})_i}
{h} = \frac{1}{h^2} (p_{i+1}(u_{i+1} - u_i) - p_i(u_i - u_{i-1})) $$
\item ~\\ \includegraphics{mexson2.pdf}
$$ (pu')' \approx \frac{pu'|_{i + \frac{1}{2}} - pu'|_{i - \frac{1}{2}}}{h} =
\frac{1}{h^2}(p_{i + \frac{1}{2}}(y_{i+1} - y_i) - p_{i - \frac{1}{2}}(y_i - y_{i-1}))$$
\begin{align*}
p_{i + \frac{1}{2}} &= \frac{1}{2}(p_i + p_{i+1}) \\
p_{i - \frac{1}{2}} &= \frac{1}{2}(p_i + p_{i-1})
\end{align*}
\end{enumerate}

\end{document}
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