-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
8 changed files
with
130 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,7 @@ | ||
## zestaw 2 zadanie 2 | ||
|
||
$$ | ||
x_1 = x_2 = x \\ | ||
x' = \gamma(x_1 - ut) \\ | ||
t_2 = \gamma(t_1-\frac{ux}{c^2}) \\ | ||
$$ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,7 @@ | ||
## Zestaw 2 zadanie 16 | ||
|
||
$$ | ||
E_k = mc^2(\gamma-1) \\ | ||
E_c = mc^2 \\ | ||
E^2 - (pc)^2 = const \\ | ||
$$ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,5 @@ | ||
## Zestaw 3 | ||
|
||
$$ | ||
\nabla = \left(\frac{\partial}{\partial x}, \frac{\partial}{\partial y}, \frac{\partial}{\partial z}\right) | ||
$$ |
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1 @@ | ||
,mszeptuch,fedora,13.03.2024 17:28,file:///home/mszeptuch/.config/libreoffice/4; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,77 @@ | ||
<!--nie przerywam pańśtwu, bo przecież nie wolno stresować młodzierzy--> | ||
|
||
### Równania II liniowe rzędu | ||
|
||
$$ | ||
y'' = x^2 \\ | ||
y' = \frac{x^3}{3} + C \\ | ||
y = \frac{x^4}{12} + C x + C_1 \\ | ||
$$ | ||
|
||
```{tip} | ||
rodzina funkcji wyjściowych zeleży od 2 parametrów | ||
``` | ||
|
||
$$ | ||
y'' + p(x) y' + q(x) y = f(x) | ||
$$ | ||
|
||
```{note} | ||
liniowe, ponieważ $L(y_1 + y_2) = L(y_1) + L(y_2) \land L(\alpha y) = \alpha L(y)$ | ||
``` | ||
|
||
```{note} | ||
twierdzenie CORN nadal zachodzi | ||
``` | ||
|
||
|
||
Rozważmy nastęþujące równanie: | ||
|
||
$$ | ||
y'' + py' + qy = 0 \\ | ||
$$ | ||
|
||
```{admonition} Macierz Wrońskiego | ||
Dwa rzowiażania rówania jednordnego stanowią tzw. **układ fundamentalny** | ||
jeżeli następujący wyznacznik $\left|\begin{matrix}y_1 (x) & y_2 (x) \\ y_1'(x) & y_2'(x)\end{matrix}\right| \neq 0$ | ||
Jeżeli $y_1(x)$ oraz $y_2(x)$ stanowią ukłąd fundamentalny dla RJ, to | ||
$y = C_1 y_1 + C_1 y_2$ to CORJ. | ||
Ponadto zagadnienie Coshiego tj. $\left\{\begin{matrix}y(x_0) = a \\ y'(x_0) = b\end{matrix}\right.$ ma dokładnie | ||
jedno rozwiązanie. | ||
``` | ||
|
||
ROzwiązania szukamy w postaci $y = e^{r * x}$. Udowadniamy z dowodu nie-wprost. | ||
<!--Muszę trochę energiczniej pisać, bo nie uda mi się rozwalic tej tablicy do końca semestru i znowu będę się z n nią musiał...--> | ||
|
||
$$ | ||
r^2 + pr + q = 0 | ||
$$ | ||
|
||
- jeżeli $\Delta > 0$ | ||
istnieją 2 pierwiastki. | ||
|
||
$$ | ||
y = e^{r_1 x} + e^{r_2 x} | ||
$$ | ||
|
||
<!---skoro już jestem przy ogłoszeniach, to jutro mamy.... wykład. i jeśli się okaże, że to jest dobre rozwiązanie, to w przyszłym tygodniu też tak zrobimy.--> | ||
- $\Delta = 0$ | ||
|
||
$$ | ||
r = \frac{-p}{2} \\ | ||
\\ | ||
y_1 = e^{rx} \\ | ||
y_2 = x * e^{rx} | ||
$$ | ||
|
||
- $\Delta < 0$ | ||
|
||
załóżmy, że rozważamy róœnanie w dziedzinie $\mathbb{C}$ | ||
|
||
$$ | ||
r_1 = \alpha + \beta i \\ | ||
y_1 = e^{\alpha x} cos \beta x \\ | ||
y_2 = e^{\alpha x} sin \beta x | ||
$$ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1 @@ | ||
# Matematyka 2 - Ćwiczenia |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,32 @@ | ||
## Metoda czynnika całkującego | ||
|
||
$$ | ||
y' + p(x) = q(x) \\ | ||
y' \mu(x) + \mu(x)p(x)y = q(x) \mu(x) \\ | ||
(y*\mu(x))' = q(x) \mu(x) \\ | ||
\mu(x) = e^{\int p(x) dx} | ||
$$ | ||
|
||
Rozwiązywanie róœnań liniowych II rzędu | ||
|
||
- wielomian harakterystyczny | ||
|
||
$$ | ||
y'' +y' - 2y = e^{-x} \\ | ||
\lambda^2 + \lambda - 2 = 0 \\ | ||
\lambda = 1 \lor \lambda = -2 \\ | ||
y = C_1 e^{x} + C_2 e^{-2x} | ||
$$ | ||
|
||
- dla $\Delta < 0$ - suma sinus+cos, ignorujemy `i` | ||
- dla $\Delta = 0$ - $Ce^x + Cxe^x$ | ||
|
||
|
||
$$ | ||
\left\{ | ||
\begin{matrix} | ||
C_1' y_1 + c_2' y_2 = 0 \\ | ||
C_1' y_1' + C_2' y_2' = f(x) | ||
\end{matrix} | ||
\right. | ||
$$ |