Pohledná žena pozná i v nouzi přítele.
-- Satirikus
-- Satirikus
■ Diskuzní fórum
■ Pískoviště
■ Poslední změny
■ Registrace
■ Etický kodex
■ Nápověda
■ Administrace
■ Hlášení chyb
■ Pískoviště
■ Poslední změny
■ Registrace
■ Etický kodex
■ Nápověda
■ Administrace
■ Hlášení chyb
 |  |
© 1999-2008 HEAT
JSPWiki v2.4.104
| At line 1 added 2 lines. |
| [{ALLOW view All}] |
| [{ALLOW edit,upload Trusted}] |
| At line 8 changed 1 line. |
| [{Math fontsize='14' |
| [{LTMath fontsize='14' |
| At line 13 changed 1 line. |
| skalární součin vektorů: [{Math fontsize='14' |
| skalární součin vektorů: [{LTMath fontsize='14' |
| At line 18 changed 1 line. |
| | [{Math fontsize='14' |
| | [{LTMath fontsize='14' |
| At line 23 changed 1 line. |
| [{Math fontsize='12' |
| [{LTMath fontsize='12' |
| At line 32 changed 1 line. |
| [{Math fontsize='14' |
| [{LTMath fontsize='14' |
| At line 36 changed 1 line. |
| [{Math fontsize='12' |
| [{LTMath fontsize='12' |
| At line 53 changed 1 line. |
| [{Math fontsize='14' |
| [{LTMath fontsize='14' |
| At line 59 changed 1 line. |
| [{Math fontsize='14' |
| [{LTMath fontsize='14' |
| At line 65 changed 1 line. |
| [{Math fontsize='14' |
| [{LTMath fontsize='14' |
| At line 71 changed 1 line. |
| [{Math fontsize='14' maxwidth='700' |
| [{LTMath fontsize='14' maxwidth='700' |
| At line 77 changed 1 line. |
| [{Math fontsize='12' maxwidth='900' |
| [{LTMath fontsize='12' maxwidth='900' |
| At line 79 changed 1 line. |
| \nabla\times\vec{v}=\left(\sum\limits_j\vec{\delta}_j\frac{\partial}{\partial |
| \begin{array}{l} |
| {\nabla\times\vec{v}=\left(\sum\limits_j\vec{\delta}_j\frac{\partial}{\partial |
| At line 82 changed 2 lines. |
| x_j}v_k=\nonumber\\ |
| =\sum\limits_i\sum\limits_j\sum\limits_k\varepsilon_{ijk}\vec{\delta}_i\frac{\partial |
| x_j}v_k=\nonumber}\\ \\ |
| {=\sum\limits_i\sum\limits_j\sum\limits_k\varepsilon_{ijk}\vec{\delta}_i\frac{\partial |
| At line 90 changed 1 line. |
| =rot\,\vec{v} |
| =rot\,\vec{v}} |
| \end{array} |
| At line 96 added 37 lines. |
| Laplaceův operátor nabla%%sup 2%% působící na: |
| * skalární pole: |
| [{LTMath fontsize='12' |
| \nabla^2s=\nabla.(\nabla |
| s)=\left(\sum\limits_i\vec{\delta}_i\frac{\partial s}{\partial x_i}\right). |
| \left(\sum\limits_j\vec{\delta}_j\frac{\partial s}{\partial x_j}\right)= |
| \sum\limits_i\sum\limits_j\vec{\delta}_i\vec{\delta}_j\frac{\partial^2s}{\partial |
| x_j\partial x_i}= \sum\limits_i\sum\limits_j\delta_{ij}\frac{\partial^2s}{\partial |
| x_j\partial x_i}=\sum\limits_i\frac{\partial^2s} {\partial x_i^2} |
| }] |
| * vektorové pole: |
| [{LTMath fontsize='12' |
| \nabla^2\vec{v}=\nabla^2\sum\limits_i\vec{\delta}_iv_i=\sum\limits_i\vec{\delta}_i\nabla^2v_i }] |
| což neplatí v křivočarých souřadnicích; zde užijeme dentitu: |
| [{LTMath fontsize='12' |
| \nabla^2\vec{v}=\nabla(\nabla.\vec{v})-\nabla\times(\nabla\times\vec{v}) }] |
| dále platí například: |
| [{LTMath fontsize='12' |
| \begin{array}{l} |
| \nabla rs = r\nabla s+s\nabla r\\ |
| \nabla.s\vec{v} = ...\\ |
| \nabla\times s\vec{v} = \nabla s\times\vec{v}+s\nabla\times\vec{v} |
| \end{array} |
| }] |
View page
Více informací...
Přihlášení
Tato strana (revision-16) byla změněna
11:09 20.11.2007
uživatelem xkrumpha.