diff --git a/notes/.obsidian/graph.json b/notes/.obsidian/graph.json index 7d5fc71..9bbbf4f 100644 --- a/notes/.obsidian/graph.json +++ b/notes/.obsidian/graph.json @@ -95,6 +95,6 @@ "repelStrength": 9.83333333333333, "linkStrength": 0.65, "linkDistance": 134, - "scale": 0.20886368800677915, + "scale": 0.1446372775858317, "close": false } \ No newline at end of file diff --git a/notes/.obsidian/plugins/obsidian-activity-history/data.json b/notes/.obsidian/plugins/obsidian-activity-history/data.json index fcd4c0e..40cd63d 100644 --- a/notes/.obsidian/plugins/obsidian-activity-history/data.json +++ b/notes/.obsidian/plugins/obsidian-activity-history/data.json @@ -12,8 +12,8 @@ "checkpointList": [ { "path": "/", - "date": "2023-02-07", - "size": 964283 + "date": "2023-02-15", + "size": 968811 } ], "activityHistory": [ @@ -1079,6 +1079,22 @@ { "date": "2023-02-07", "value": 1308 + }, + { + "date": "2023-02-08", + "value": 37 + }, + { + "date": "2023-02-09", + "value": 10 + }, + { + "date": "2023-02-14", + "value": 1559 + }, + { + "date": "2023-02-15", + "value": 3062 } ] } diff --git a/notes/.obsidian/plugins/various-complements/data.json b/notes/.obsidian/plugins/various-complements/data.json index 5339be6..07640c4 100644 --- a/notes/.obsidian/plugins/various-complements/data.json +++ b/notes/.obsidian/plugins/various-complements/data.json @@ -55,14 +55,6 @@ } } }, - "mat/geometrie": { - "mat/geometrie": { - "frontMatter": { - "count": 1, - "lastUpdated": 1673519112200 - } - } - }, "plynu": { "plynu": { "currentFile": { @@ -158,6 +150,14 @@ "lastUpdated": 1674632664293 } } + }, + "teplo": { + "teplo": { + "currentFile": { + "count": 1, + "lastUpdated": 1676372910354 + } + } } } } \ No newline at end of file diff --git a/notes/.obsidian/workspace.json b/notes/.obsidian/workspace.json index 1dc32f2..8b06bb5 100644 --- a/notes/.obsidian/workspace.json +++ b/notes/.obsidian/workspace.json @@ -4,15 +4,19 @@ "type": "split", "children": [ { - "id": "817f519095997e5f", + "id": "bff99b47cce9d1cd", "type": "tabs", "children": [ { - "id": "a484175f0886a564", + "id": "aabbc9ef4eb756f1", "type": "leaf", "state": { - "type": "empty", - "state": {} + "type": "markdown", + "state": { + "file": "mat/Funkce/Goniometrické funkce.md", + "mode": "source", + "source": false + } } } ] @@ -44,7 +48,7 @@ "state": { "type": "search", "state": { - "query": "osob", + "query": "matice", "matchingCase": false, "explainSearch": false, "collapseAll": false, @@ -73,6 +77,7 @@ "state": { "type": "backlink", "state": { + "file": "mat/Funkce/Goniometrické funkce.md", "collapseAll": false, "extraContext": false, "sortOrder": "alphabetical", @@ -89,6 +94,7 @@ "state": { "type": "outgoing-link", "state": { + "file": "mat/Funkce/Goniometrické funkce.md", "linksCollapsed": false, "unlinkedCollapsed": true } @@ -134,7 +140,9 @@ "type": "leaf", "state": { "type": "outline", - "state": {} + "state": { + "file": "mat/Funkce/Goniometrické funkce.md" + } } }, { @@ -208,17 +216,17 @@ "breadcrumbs:Breadcrumbs Visualisation": false } }, - "active": "a484175f0886a564", + "active": "aabbc9ef4eb756f1", "lastOpenFiles": [ - "kbb/tools/arp-scan.md", - "kbb/tools/aircrack-ng.md", - "kbb/tools/john.md", - "kbb/tools/tools.md", - "kbb/tools/SQLMap.md", - "kbb/tools/nmap.md", - "kbb/tools/arpspoof.md", - "kbb/kbb.md", - "mat/Funkce/Goniometrické funkce.md", - "mat/mat.md" + "mat/Funkce/Tangens.md", + "mat/Funkce/Příklady.md", + "mat/Funkce/Sinus.md", + "mat/Funkce/Cotangens.md", + "mat/Funkce/Cosinus.md", + "dej/dej.md", + "dej/moderní/komunismus/Untitled.md", + "fyz/fyz.md", + "cjl/cjl.md", + "ang/Essay - Description of our school.md" ] } \ No newline at end of file diff --git a/notes/ang/Essay - Description of our school.md b/notes/ang/Essay - Description of our school.md new file mode 100644 index 0000000..8f974e2 --- /dev/null +++ b/notes/ang/Essay - Description of our school.md @@ -0,0 +1,5 @@ +# Essay - Description of our school + +Our school is a large four story building located in the middle of Prague in Czech Republic. It is an older building, as the school was originally opened in 1901. It has 2 wings, a so-called dark and light corridors, as well as a courtyard with parking for teachers. +The school has a lot of equipment related to IT and for making smaller electrical projects (like a light controller), including some industrial machinery for such projects, like a CNC, laser for cutting and engraving or 3D printers. There are many classrooms full of computers for different classes - there are multiple for teaching programming, one specialized for cybersecurity (called the Cybernetic Polygon), multiple classrooms for 3D object creation (both for audiovisual results as well as for 3D printing), one for robotics (lego, arduino, etc) and even one for virtual reality, provided by a startup that originated at the school. +The school also has “Preslova Media House”, that create a school newspaper, as well as make recordings of various events. Recently, they managed the whole media presence of one of the biggest Prague school events, “Pragensis school”, where they recorded the event, but also managed advertisements, social media accounts and more. diff --git a/notes/ang/ang.md b/notes/ang/ang.md index f00347a..e8e87dc 100644 --- a/notes/ang/ang.md +++ b/notes/ang/ang.md @@ -10,6 +10,7 @@ type: folder_brief_live imagePrefix: 'data/' ``` %% Zoottelkeeper: Beginning of the autogenerated index file list %% +- [[ang/Essay - Description of our school|Essay - Description of our school]] - [[ang/fun|fun]] - [[ang/listening|listening]] - [[ang/slovesa|slovesa]] diff --git a/notes/data/Pasted image 20230214115627.png b/notes/data/Pasted image 20230214115627.png new file mode 100644 index 0000000..b260044 Binary files /dev/null and b/notes/data/Pasted image 20230214115627.png differ diff --git a/notes/data/Pasted image 20230214115733.png b/notes/data/Pasted image 20230214115733.png new file mode 100644 index 0000000..4bf68dd Binary files /dev/null and b/notes/data/Pasted image 20230214115733.png differ diff --git a/notes/data/Pasted image 20230214120718.png b/notes/data/Pasted image 20230214120718.png new file mode 100644 index 0000000..39cc56f Binary files /dev/null and b/notes/data/Pasted image 20230214120718.png differ diff --git a/notes/data/Pasted image 20230215110903.png b/notes/data/Pasted image 20230215110903.png new file mode 100644 index 0000000..923ca20 Binary files /dev/null and b/notes/data/Pasted image 20230215110903.png differ diff --git a/notes/data/Pasted image 20230215111050.png b/notes/data/Pasted image 20230215111050.png new file mode 100644 index 0000000..e3b84c2 Binary files /dev/null and b/notes/data/Pasted image 20230215111050.png differ diff --git a/notes/data/Pasted image 20230215114031.png b/notes/data/Pasted image 20230215114031.png new file mode 100644 index 0000000..23f5327 Binary files /dev/null and b/notes/data/Pasted image 20230215114031.png differ diff --git a/notes/fyz/Mechanika tekutin/Termodynamika/Kruhovy dej.md b/notes/fyz/Mechanika tekutin/Termodynamika/Kruhovy dej.md new file mode 100644 index 0000000..951aeb2 --- /dev/null +++ b/notes/fyz/Mechanika tekutin/Termodynamika/Kruhovy dej.md @@ -0,0 +1,50 @@ +# Kruhovy dej + +- cyklicky +- dej pri kterem je konecny stav totozny s puvodnim stavem + +Plyn uzavreny ve valci s pohyblivym pistem muze konat praci pouze pri zvetsovani objemu. +Prace plynu ma ohranicenou velikost +Vrati-li se plyn do puvodniho stavu, muze opet konat praci. + +![](Pasted%20image%2020230214115733.png) + +![](Pasted%20image%2020230214120718.png) + +AB: izofanicky $W_1’=p\Delta V$ +$W_1'=0.5*10^6*4*10^{-3}$ +$W_1'=2000J$ + +BC: izochoricky, prace se nekona, odevzdava teplo +CD: izofanicky, prijima teplo +$W_2=p\Delta V$ +$W_2=0.1*10^6*4*10^{-3}$ +$W_2=400J$ + +DA: izochoricky, prijima teplo, prace se nekona + +Celkem +$W'=W_1'+W_2'=2kJ-0.4kJ=1.6kJ$ +$\Delta U=0J$ + +Vykonaná práce je rovna obsahu obkresleného grafem. + +--- + +Plyn přijal od ohřívače během jednoho cyklu tepli $7MJ$ a odevzdal chladiči teplo $3MJ$. +Jakou práci při tom vykonal? +Jaká je účinnost tohoto cyklu? + +$Q_1=7MJ$ +$Q_2=3MJ$ + +$W'=Q_1-Q_2$ +$W'=4MJ$ + +$\eta=\frac{W'}{Q_1}=\frac47$ + +--- + +## Tepelne motory + +$\eta\le\eta_{\max}=\frac{T_1-T_2}{T_1}=1-\frac{T_2}{T_1}$ diff --git a/notes/fyz/Mechanika tekutin/Termodynamika/Termodynamika.md b/notes/fyz/Mechanika tekutin/Termodynamika/Termodynamika.md index 6039d04..a763137 100644 --- a/notes/fyz/Mechanika tekutin/Termodynamika/Termodynamika.md +++ b/notes/fyz/Mechanika tekutin/Termodynamika/Termodynamika.md @@ -9,6 +9,7 @@ $T=273K$ … $t=0\degree C$ %% Zoottelkeeper: Beginning of the autogenerated index file list %% - [[fyz/Mechanika tekutin/Termodynamika/Celsiova teplotní stupnice|Celsiova teplotní stupnice]] - [[fyz/Mechanika tekutin/Termodynamika/Ideální plyn|Ideální plyn]] +- [[fyz/Mechanika tekutin/Termodynamika/Kruhovy dej|Kruhovy dej]] - [[fyz/Mechanika tekutin/Termodynamika/Pokus - Měření účinnosti varné konvice|Pokus - Měření účinnosti varné konvice]] - [[fyz/Mechanika tekutin/Termodynamika/První termodynamický zákon|První termodynamický zákon]] - [[fyz/Mechanika tekutin/Termodynamika/Tepelné děje Ideálního plynu|Tepelné děje Ideálního plynu]] diff --git a/notes/har/Zvukova karta.md b/notes/har/Zvukova karta.md new file mode 100644 index 0000000..72830d2 --- /dev/null +++ b/notes/har/Zvukova karta.md @@ -0,0 +1,11 @@ +# Zvukova karta +- co dela zvukova karta, k cemu slouzi +- jakym zpusobem funguje digitalizace zvuku +- na jakem principu funguje reproduktor +- dulezite parametry u reproduktoru +- podle jakych parametru by jste si vybrali sluchatka +- jake tri druhy mikrofonu znate +- kde/pro co vyuzijete dynamicky mikrofon +- kde najdete elektronove mikrofony +- k cemu slouzi smer mikrofonu +- jake parametry mikrofonu urcujeme diff --git a/notes/har/har.md b/notes/har/har.md index 30347c8..20b843a 100644 --- a/notes/har/har.md +++ b/notes/har/har.md @@ -24,4 +24,5 @@ imagePrefix: 'data/' - [[har/USB|USB]] - [[har/WOL|WOL]] - [[har/Základní deska|Základní deska]] +- [[har/Zvukova karta|Zvukova karta]] %% Zoottelkeeper: End of the autogenerated index file list %% diff --git a/notes/mat/Funkce/Goniometrické funkce.md b/notes/mat/Funkce/Goniometrické funkce.md index fc8086e..e94cc20 100644 --- a/notes/mat/Funkce/Goniometrické funkce.md +++ b/notes/mat/Funkce/Goniometrické funkce.md @@ -8,6 +8,8 @@ $\cos\alpha=\frac{b}c$ ($\sin\beta=\frac{a}c$) $\tg\alpha=\frac{a}b$ $\cotg\alpha=\frac{b}a$ +![](Pasted%20image%2020230215114031.png) + --- V pravoúhlem $\triangle ABC$ ($C$): $\beta=38\degree$; $a=7cm$, ostatní úhly a strany? diff --git a/notes/mat/Funkce/Tangens.md b/notes/mat/Funkce/Tangens.md index d3ba2ef..7d299bc 100644 --- a/notes/mat/Funkce/Tangens.md +++ b/notes/mat/Funkce/Tangens.md @@ -7,4 +7,87 @@ tags: $\DeclareMathOperator{\tg}{tg}\DeclareMathOperator{\cotg}{cotg}$ $\tg \alpha$ Protilehlá strana ku přilehlé straně v pravoúhlém trojúhelníku. -Převrácená hodnota [$\cotg \alpha$](./Cotangens.md) ($\frac{1}{\cotg \alpha}$). \ No newline at end of file +Převrácená hodnota [$\cotg \alpha$](./Cotangens.md) ($\frac{1}{\cotg \alpha}$). + +> [!SENTENCE] +> Funkcí **tangens** se nazývá funkce daná vztahem $$y=\frac{\sin x}{\cos x}$$ + +## Definiční obor + +$D_{\sin}=\mathbb{R}$ +$D_{\cos}=\mathbb{R}$ + +$\tg x = \frac{\sin x}{\cos x}$ +$\cos x\ne0$ + +$x\ne\frac\pi2+k\pi,k\in\mathbb{Z}$ + +$\tan(-x):\frac{\sin(-x)}{\cos(-x)}=\frac{-\sin x}{\cos x}=-\tan x$ + +perioda $\tan$ ke $k\pi$ (každá půl otáčka). + +$\tan(x+k\pi)=\tan x$ +![](Pasted%20image%2020230215110903.png) + +![](Pasted%20image%2020230215111050.png) + +ve 3. kv. je $\frac--=+$ + +--- + +$x=\frac{\pi}4=45\degree$ +$\sin x=\frac{\sqrt2}2$ +$\cos x=\frac{\sqrt2}2$ +$\tg x=\frac{\sin x}{\cos x}=\frac{\frac{\sqrt2}2}{\frac{\sqrt2}2}=1$ +$\cotg x=\frac{\cos x}{\sin x}=\frac{\frac{\sqrt2}2}{\frac{\sqrt2}2}=1$ + +--- + +$x=-30\degree\approx330\degree$ +$\sin x=-\frac12$ +$\cos x=-\frac{\sqrt3}2$ + +$\tg x=\frac{\sin x}{\cos x}=\frac{-\frac12}{-\frac{\sqrt3}2}=\frac{2}{2\sqrt3}$ +$\cotg x=\frac{\cos x}{\sin x}=\frac{-\frac{\sqrt3}2}{-\frac12}=\frac{2\sqrt3}2$ + +--- + +$x=780\degree\approx60\degree$ + +$\sin x=\frac{\sqrt3}2$ +$\cos x=\frac12$ + +$\tg x=\frac{\sin x}{\cos x}=\frac{\frac{\sqrt3}2}{\frac12}=\frac{2\sqrt3}2$ +$\cotg x=\frac{\cos x}{\sin x}=\frac{\frac12}{\frac{\sqrt3}2}=\frac2{2\sqrt3}$ + +--- + +$x=-315\degree\approx45\degree$ + +$\sin x=\frac{\sqrt2}2$ +$\cos x=\frac{\sqrt2}2$ + +$\tg x=\cotg x=1$ + +--- + + +$$a^2*\sin\frac{\pi}2+b^2*\cos0+2ab*\cos\pi$$ +$a^2*1+b^2*1+2ab*(-1)$ +$(a-b)(a-b)$ + + +--- + +$$3\cos\frac\pi2-4\sin\frac32\pi+8\tg \pi$$ + +$3*1-4*(-1)+8*\frac01$ +$3+4+0$ +$7$ + + +--- + +$$2\cos\pi+6\cotg\frac32\pi-5\sin2\pi$$ + +$2*0+6$ \ No newline at end of file diff --git a/notes/mat/Rovnice/Matice.md b/notes/mat/Rovnice/Matice.md index 8b6ccbb..6bdcdb3 100644 --- a/notes/mat/Rovnice/Matice.md +++ b/notes/mat/Rovnice/Matice.md @@ -2,7 +2,6 @@ tags: [mat, mat/rovnice ] --- # Matice -s# Matice Slouží k řešení [Soustavy rovnic](Soustavy%20rovnic.md). Například: