From f253fe796da143cfd7daf1c2d9e6643ab6fb36ed Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zacharias=20Zell=C3=A9n?= Date: Tue, 20 Jan 2026 09:26:43 +0100 Subject: [PATCH] vault backup: 2026-01-20 09:26:43 --- .obsidian/workspace.json | 42 ++++++++++++++++++++++++++-------------- Funktioner.md | 2 +- Vektorer.md | 10 ++++++++++ 3 files changed, 39 insertions(+), 15 deletions(-) create mode 100644 Vektorer.md diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json index 254b88e..07e6adb 100644 --- a/.obsidian/workspace.json +++ b/.obsidian/workspace.json @@ -195,16 +195,30 @@ "state": { "type": "markdown", "state": { - "file": "Funktioner Forts.md", + "file": "Funktioner.md", "mode": "source", "source": false }, "icon": "lucide-file", - "title": "Funktioner Forts" + "title": "Funktioner" + } + }, + { + "id": "30539ff6e6b3eb6a", + "type": "leaf", + "state": { + "type": "markdown", + "state": { + "file": "Vektorer.md", + "mode": "source", + "source": false + }, + "icon": "lucide-file", + "title": "Vektorer" } } ], - "currentTab": 13 + "currentTab": 14 } ], "direction": "vertical" @@ -261,8 +275,7 @@ } ], "direction": "horizontal", - "width": 300, - "collapsed": true + "width": 300 }, "right": { "id": "b700e0cd0f882a5c", @@ -278,7 +291,7 @@ "state": { "type": "backlink", "state": { - "file": "Grafer.md", + "file": "Funktioner Forts.md", "collapseAll": false, "extraContext": false, "sortOrder": "alphabetical", @@ -288,7 +301,7 @@ "unlinkedCollapsed": true }, "icon": "links-coming-in", - "title": "Backlinks for Grafer" + "title": "Backlinks for Funktioner Forts" } }, { @@ -326,13 +339,13 @@ "state": { "type": "outline", "state": { - "file": "Komplexa tal.md", + "file": "Funktioner Forts.md", "followCursor": false, "showSearch": false, "searchQuery": "" }, "icon": "lucide-list", - "title": "Outline of Komplexa tal" + "title": "Outline of Funktioner Forts" } }, { @@ -364,19 +377,20 @@ "obsidian-git:Open Git source control": false } }, - "active": "76c8d943958d45bf", + "active": "30539ff6e6b3eb6a", "lastOpenFiles": [ + "Funktioner.md", + "Vektorer.md", + "Gräsvärde (1).md", + "Grafer.md", + "Funktioner Forts.md", "Maclaurin.md", "ODE.md", - "Funktioner.md", - "Gräsvärde (1).md", "Primära Funktioner.md", "Differential.md", "Integraler.md", - "Grafer.md", "Definitioner.md", "Derivata.md", - "Funktioner Forts.md", "Int1.png", "Tenta Example.md", "Komplexa tal.md", diff --git a/Funktioner.md b/Funktioner.md index 22f7614..8d102dc 100644 --- a/Funktioner.md +++ b/Funktioner.md @@ -1,4 +1,4 @@ -- Talmängder: +k- Talmängder: - De natuliga talen: $\mathbb{N} = \{0, 1, 2, ...\}$ - De hela talen: $\mathbb{Z} = \{..., -2, -1, 0, 1, 2, ...\}$ - De rationella talen: $\mathbb{Q} = \{\frac{p}{q}: p, q \in \mathbb{Z}, q\neq0\}$ diff --git a/Vektorer.md b/Vektorer.md new file mode 100644 index 0000000..4377952 --- /dev/null +++ b/Vektorer.md @@ -0,0 +1,10 @@ +- **DEF** + - *I en rätviklig rektangle stämmer $\overrightarrow{AC}=\left(\overrightarrow{AB}+\overrightarrow{AD}\right)$* + - $\overrightarrow{u}=\left(1,2,3\right)=\left(\begin{aligned}1\\2\\3\end{aligned}\right)=\left[\begin{aligned}1\\2\\3\end{aligned}\right]$ +- **Exemple** + - $$\begin{align}\text{Rektangeln }A,\;B,\;C,\;D\;\text{. Låt }E\text{ Vara punkten som delar diagonalen }\overline{AC}:\text{förhållandet }1:3\\\left(\text{dvs: }\overline{AE}:\overline{EC}=1:3\right)\\\text{Benämna }\overrightarrow{a}=\overrightarrow{AB},\overrightarrow{h}=\overrightarrow{AD}\text{ Uttryc vektor }\overrightarrow{c}=\overrightarrow{EC}\text{ i termer av }\overrightarrow{a}\text{ och }\overrightarrow{h}\\\\\text{Vart ligger punkten }E\:\text{? Hur kan vi uttrycka }\overrightarrow{c}\text{ med hjälp av }\overrightarrow{a}\text{ och }\overrightarrow{h}\:\text{?}\\\overrightarrow{c}=\overrightarrow{EC}=\frac34\overrightarrow{AC}=\frac34\left(\overrightarrow{AB}+\overrightarrow{BC}\right)=\frac34\left(\overrightarrow{a}+\overrightarrow{h}\right)=\frac34\overrightarrow{a}+\frac34\overrightarrow{h}\end{align}$$ +- **Koordinatrummet $\mathbb{R}^m$** + - *Mängden $\mathbb{R}^m\;\left(\text{där }m\in\mathbb{N}\right)$ består av koordinattpunkter av längden $m$ vars element är reella tal. Som skalärer tas $\mathbb{R}\text{(vanliga reela tal)}$* + - **Hur funkar $+$ och $\times$** + - $$\begin{align}\overrightarrow{u}=\left(u_1,u_2,u_3,\dots,u_m\right)\in\mathbb{R}^m\\\overrightarrow{v}=\left(v_1,v_2,\dots,y_m\right)\in\mathbb{R}^m\\\lambda\in\mathbb{R}\\\\\overrightarrow{u}+\overrightarrow{v}=\left(u_1+v_1,u_2+v_2,\dots,\lambda u_m\right)\\\text{OBS: }\left(1,2\right)+\left(3,4,5\right)\Rightarrow\text{Inte Definierat}\\\\\overrightarrow{u}\times\overrightarrow{v}=\left(u_1v_1,u_2v_2\dots,u_mv_m\right)\\\begin{aligned}\overrightarrow{u}=\left(1,2,0\right)\\\overrightarrow{v}=\left(0,0,-2\right)\end{aligned}\Rightarrow\overrightarrow{u}\times\overrightarrow{v}=\left(1\times0,2\times0,0\times\left(-2\right)\right)=\left(0,0,0\right)\\\text{Man kan i normala fall inte multiplecera vektorer!}\end{align}$$ + - \ No newline at end of file