vault backup: 2026-04-08 09:35:01

vault backup: 2026-04-08 09:07:20
vault backup: 2026-04-08 08:47:52
2026-04-08 09:35:01 +02:00 · 2026-04-08 09:07:20 +02:00 · 2026-04-08 08:47:52 +02:00 · 2026-04-08 08:37:01 +02:00 · 2026-04-08 08:32:15 +02:00 · 2026-04-08 08:25:49 +02:00
33 changed files with 22657 additions and 165 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+.trash/
--- a/.obsidian/appearance.json
+++ b/.obsidian/appearance.json
@@ -1,5 +1,5 @@
 {
-  "theme": "obsidian",
+  "theme": "moonstone",
  "interfaceFontFamily": "Noto Sans",
  "cssTheme": "",
  "enabledCssSnippets": [
--- a/.obsidian/community-plugins.json
+++ b/.obsidian/community-plugins.json
@@ -7,5 +7,7 @@
  "templater-obsidian",
  "highlightr-plugin",
  "obsidian-file-color",
-  "darlal-switcher-plus"
+  "darlal-switcher-plus",
+  "dataview",
+  "obsidian-vimrc-support"
 ]
--- a/.obsidian/graph.json
+++ b/.obsidian/graph.json
@@ -17,6 +17,6 @@
  "repelStrength": 0,
  "linkStrength": 0.500822368421053,
  "linkDistance": 30,
-  "scale": 1,
+  "scale": 0.9895212671709476,
  "close": true
 }
--- a/.obsidian/plugins/dataview/main.js
+++ b/.obsidian/plugins/dataview/main.js
--- a/.obsidian/plugins/dataview/manifest.json
+++ b/.obsidian/plugins/dataview/manifest.json
@@ -0,0 +1,11 @@
+{
+  "id": "dataview",
+  "name": "Dataview",
+  "version": "0.5.68",
+  "minAppVersion": "0.13.11",
+  "description": "Complex data views for the data-obsessed.",
+  "author": "Michael Brenan <blacksmithgu@gmail.com>",
+  "authorUrl": "https://github.com/blacksmithgu",
+  "helpUrl": "https://blacksmithgu.github.io/obsidian-dataview/",
+  "isDesktopOnly": false
+}
--- a/.obsidian/plugins/dataview/styles.css
+++ b/.obsidian/plugins/dataview/styles.css
@@ -0,0 +1,141 @@
+.block-language-dataview {
+    overflow-y: auto;
+}
+
+/*****************/
+/** Table Views **/
+/*****************/
+
+/* List View Default Styling; rendered internally as a table. */
+.table-view-table {
+    width: 100%;
+}
+
+.table-view-table > thead > tr, .table-view-table > tbody > tr {
+    margin-top: 1em;
+    margin-bottom: 1em;
+    text-align: left;
+}
+
+.table-view-table > tbody > tr:hover {
+    background-color: var(--table-row-background-hover);
+}
+
+.table-view-table > thead > tr > th {
+    font-weight: 700;
+    font-size: larger;
+    border-top: none;
+    border-left: none;
+    border-right: none;
+    border-bottom: solid;
+
+    max-width: 100%;
+}
+
+.table-view-table > tbody > tr > td {
+    text-align: left;
+    border: none;
+    font-weight: 400;
+    max-width: 100%;
+}
+
+.table-view-table ul, .table-view-table ol {
+    margin-block-start: 0.2em !important;
+    margin-block-end: 0.2em !important;
+}
+
+/** Rendered value styling for any view. */
+.dataview-result-list-root-ul {
+    padding: 0em !important;
+    margin: 0em !important;
+}
+
+.dataview-result-list-ul {
+    margin-block-start: 0.2em !important;
+    margin-block-end: 0.2em !important;
+}
+
+/** Generic grouping styling. */
+.dataview.result-group {
+    padding-left: 8px;
+}
+
+/*******************/
+/** Inline Fields **/
+/*******************/
+
+.dataview.inline-field-key {
+    padding-left: 8px;
+    padding-right: 8px;
+    font-family: var(--font-monospace);
+    background-color: var(--background-primary-alt);
+    color: var(--nav-item-color-selected);
+}
+
+.dataview.inline-field-value {
+    padding-left: 8px;
+    padding-right: 8px;
+    font-family: var(--font-monospace);
+    background-color: var(--background-secondary-alt);
+    color: var(--nav-item-color-selected);
+}
+
+.dataview.inline-field-standalone-value {
+    padding-left: 8px;
+    padding-right: 8px;
+    font-family: var(--font-monospace);
+    background-color: var(--background-secondary-alt);
+    color: var(--nav-item-color-selected);
+}
+
+/***************/
+/** Task View **/
+/***************/
+
+.dataview.task-list-item, .dataview.task-list-basic-item {
+    margin-top: 3px;
+    margin-bottom: 3px;
+    transition: 0.4s;
+}
+
+.dataview.task-list-item:hover, .dataview.task-list-basic-item:hover {
+    background-color: var(--text-selection);
+    box-shadow: -40px 0 0 var(--text-selection);
+    cursor: pointer;
+}
+
+/*****************/
+/** Error Views **/
+/*****************/
+
+div.dataview-error-box {
+    width: 100%;
+    min-height: 150px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border: 4px dashed var(--background-secondary);
+}
+
+.dataview-error-message {
+    color: var(--text-muted);
+    text-align: center;
+}
+
+/*************************/
+/** Additional Metadata **/
+/*************************/
+
+.dataview.small-text {
+    font-size: smaller;
+    color: var(--text-muted);
+    margin-left: 3px;
+}
+
+.dataview.small-text::before {
+	content: "(";
+}
+
+.dataview.small-text::after {
+	content: ")";
+}
--- a/.obsidian/plugins/obsidian-minimal-settings/data.json
+++ b/.obsidian/plugins/obsidian-minimal-settings/data.json
@@ -1,7 +1,7 @@
 {
  "lightStyle": "minimal-light",
  "darkStyle": "minimal-dark",
-  "lightScheme": "minimal-default-light",
+  "lightScheme": "minimal-nord-light",
  "darkScheme": "minimal-flexoki-dark",
  "editorFont": "",
  "lineHeight": 1.5,
--- a/.obsidian/plugins/obsidian-vimrc-support/data.json
+++ b/.obsidian/plugins/obsidian-vimrc-support/data.json
@@ -0,0 +1,14 @@
+{
+  "vimrcFileName": ".obsidian.vimrc",
+  "displayChord": true,
+  "displayVimMode": true,
+  "fixedNormalModeLayout": false,
+  "capturedKeyboardMap": {},
+  "supportJsCommands": false,
+  "vimStatusPromptMap": {
+    "normal": "🟢",
+    "insert": "🟠",
+    "visual": "🟡",
+    "replace": "🔴"
+  }
+}
--- a/.obsidian/plugins/obsidian-vimrc-support/main.js
+++ b/.obsidian/plugins/obsidian-vimrc-support/main.js
--- a/.obsidian/plugins/obsidian-vimrc-support/manifest.json
+++ b/.obsidian/plugins/obsidian-vimrc-support/manifest.json
@@ -0,0 +1,10 @@
+{
+  "id": "obsidian-vimrc-support",
+  "name": "Vimrc Support",
+  "version": "0.10.2",
+  "description": "Auto-load a startup file with Obsidian Vim commands.",
+  "minAppVersion": "0.15.3",
+  "author": "esm",
+  "authorUrl": "",
+  "isDesktopOnly": false
+}
--- a/.obsidian/snippets/matugen.css
+++ b/.obsidian/snippets/matugen.css
@@ -6,113 +6,113 @@
 .theme-dark, .theme-light {

    /* ── Material You RGB helpers ──────────────────────────── */
-    --mat-bg-rgb:             18, 19, 26;
-    --mat-surface-rgb:        18, 19, 26;
-    --mat-on-surface-rgb:     226, 225, 235;
-    --mat-primary-rgb:        183, 196, 255;
-    --mat-on-primary-rgb:     0, 38, 131;
+    --mat-bg-rgb:             32, 15, 13;
+    --mat-surface-rgb:        32, 15, 13;
+    --mat-on-surface-rgb:     253, 219, 215;
+    --mat-primary-rgb:        255, 180, 172;
+    --mat-on-primary-rgb:     105, 0, 7;

    /* ── Core Backgrounds ──────────────────────────────────── */
-    --background-primary:           #12131a;
-    --background-primary-alt:       #12131a;
-    --background-secondary:         #1a1b22;
-    --background-secondary-alt:     #1e1f26;
+    --background-primary:           #200f0d;
+    --background-primary-alt:       #200f0d;
+    --background-secondary:         #291715;
+    --background-secondary-alt:     #2d1b19;

    /* ── Titlebar ──────────────────────────────────────────── */
-    --titlebar-background:          #12131a;
-    --titlebar-background-focused:  #1a1b22;
-    --titlebar-text-color:          #e2e1eb;
+    --titlebar-background:          #200f0d;
+    --titlebar-background-focused:  #291715;
+    --titlebar-text-color:          #fddbd7;

    /* ── Borders & Dividers ────────────────────────────────── */
-    --background-modifier-border:         #444653;
-    --background-modifier-border-focus:   #8e909f;
-    --background-modifier-border-hover:   #8e909f;
+    --background-modifier-border:         #5d3f3c;
+    --background-modifier-border-focus:   #ae8884;
+    --background-modifier-border-hover:   #ae8884;

    /* ── Text Colors ───────────────────────────────────────── */
-    --text-normal:      #e2e1eb;
-    --text-muted:       #c4c5d5;
-    --text-faint:       #8e909f;
-    --text-on-accent:   #002683;
-    --text-selection:   rgba(183, 196, 255, 0.25);
+    --text-normal:      #fddbd7;
+    --text-muted:       #e7bdb8;
+    --text-faint:       #ae8884;
+    --text-on-accent:   #690007;
+    --text-selection:   rgba(255, 180, 172, 0.25);

    /* ── Accent & Interactive ──────────────────────────────── */
-    --interactive-accent:           #b7c4ff;
-    --interactive-accent-hover:     #0d38ab;
-    --interactive-accent-rgb:       183, 196, 255;
-    --text-accent:                  #b7c4ff;
-    --text-accent-hover:            #0d38ab;
+    --interactive-accent:           #ffb4ac;
+    --interactive-accent-hover:     #de1521;
+    --interactive-accent-rgb:       255, 180, 172;
+    --text-accent:                  #ffb4ac;
+    --text-accent-hover:            #de1521;

    /* ── Hover & Active Modifiers ──────────────────────────── */
    --background-modifier-hover:          rgba(var(--mat-on-surface-rgb), 0.06);
    --background-modifier-active-hover:   rgba(var(--mat-primary-rgb), 0.15);
-    --background-modifier-success:        #822200;
+    --background-modifier-success:        #0075b9;
    --background-modifier-error:          #93000a;
    --background-modifier-error-hover:    #ffb4ab;

    /* ── Obsidian Color Scale (--color-base-XX) ────────────── */
-    --color-base-00:    #12131a;
-    --color-base-05:    #12131a;
-    --color-base-10:    #0c0e14;
-    --color-base-20:    #1a1b22;
-    --color-base-25:    #1e1f26;
-    --color-base-30:    #282a31;
-    --color-base-35:    #33343c;
-    --color-base-40:    #444653;
-    --color-base-50:    #8e909f;
-    --color-base-60:    #c4c5d5;
-    --color-base-70:    #e2e1eb;
-    --color-base-100:   #e2e1eb;
+    --color-base-00:    #200f0d;
+    --color-base-05:    #200f0d;
+    --color-base-10:    #1a0a08;
+    --color-base-20:    #291715;
+    --color-base-25:    #2d1b19;
+    --color-base-30:    #392523;
+    --color-base-35:    #452f2d;
+    --color-base-40:    #5d3f3c;
+    --color-base-50:    #ae8884;
+    --color-base-60:    #e7bdb8;
+    --color-base-70:    #fddbd7;
+    --color-base-100:   #fddbd7;

    /* ── Semantic Colors ───────────────────────────────────── */
    --color-red:        #ffb4ab;
-    --color-orange:     #ffb59f;
-    --color-yellow:     #bac4f7;
-    --color-green:      #822200;
-    --color-cyan:       #3a446f;
-    --color-blue:       #b7c4ff;
-    --color-purple:     #bac4f7;
-    --color-pink:       #ffb59f;
+    --color-orange:     #98cbff;
+    --color-yellow:     #ffb4ac;
+    --color-green:      #0075b9;
+    --color-cyan:       #8b1919;
+    --color-blue:       #ffb4ac;
+    --color-purple:     #ffb4ac;
+    --color-pink:       #98cbff;

    /* ── Headings ──────────────────────────────────────────── */
-    --h1-color:     #b7c4ff;
-    --h2-color:     #b7c4ff;
-    --h3-color:     #bac4f7;
-    --h4-color:     #ffb59f;
-    --h5-color:     #c4c5d5;
-    --h6-color:     #8e909f;
+    --h1-color:     #ffb4ac;
+    --h2-color:     #ffb4ac;
+    --h3-color:     #ffb4ac;
+    --h4-color:     #98cbff;
+    --h5-color:     #e7bdb8;
+    --h6-color:     #ae8884;

    /* ── Links ─────────────────────────────────────────────── */
-    --link-color:           #b7c4ff;
-    --link-color-hover:     #d5dbff;
-    --link-external-color:  #ffb59f;
-    --link-unresolved-color: #8e909f;
+    --link-color:           #ffb4ac;
+    --link-color-hover:     #ffffff;
+    --link-external-color:  #98cbff;
+    --link-unresolved-color: #ae8884;

    /* ── Tags ──────────────────────────────────────────────── */
-    --tag-color:            #d5dbff;
-    --tag-background:       #0d38ab;
-    --tag-border-color:     #b7c4ff;
-    --tag-color-hover:      #002683;
-    --tag-background-hover: #b7c4ff;
+    --tag-color:            #ffffff;
+    --tag-background:       #de1521;
+    --tag-border-color:     #ffb4ac;
+    --tag-color-hover:      #690007;
+    --tag-background-hover: #ffb4ac;

    /* ── Checkboxes ────────────────────────────────────────── */
-    --checkbox-color:           #b7c4ff;
-    --checkbox-color-hover:     #0d38ab;
-    --checkbox-border-color:    #8e909f;
-    --checkbox-marker-color:    #002683;
+    --checkbox-color:           #ffb4ac;
+    --checkbox-color-hover:     #de1521;
+    --checkbox-border-color:    #ae8884;
+    --checkbox-marker-color:    #690007;

    /* ── Code Blocks ───────────────────────────────────────── */
-    --code-background:  #1a1b22;
-    --code-normal:      #e2e1eb;
-    --code-comment:     #8e909f;
-    --code-function:    #b7c4ff;
+    --code-background:  #291715;
+    --code-normal:      #fddbd7;
+    --code-comment:     #ae8884;
+    --code-function:    #ffb4ac;
    --code-important:   #ffb4ab;
-    --code-keyword:     #bac4f7;
-    --code-operator:    #ffb59f;
-    --code-property:    #c4c5d5;
-    --code-punctuation: #444653;
-    --code-string:      #ffb59f;
+    --code-keyword:     #ffb4ac;
+    --code-operator:    #98cbff;
+    --code-property:    #e7bdb8;
+    --code-punctuation: #5d3f3c;
+    --code-string:      #98cbff;
    --code-tag:         #ffb4ab;
-    --code-value:       #bac4f7;
+    --code-value:       #ffb4ac;

    /* ── Scrollbar ─────────────────────────────────────────── */
    --scrollbar-thumb-bg:           rgba(var(--mat-on-surface-rgb), 0.12);
@@ -121,16 +121,16 @@

    /* ── Inputs ────────────────────────────────────────────── */
    --input-shadow: none;
-    --input-shadow-hover: 0 0 0 2px #8e909f;
+    --input-shadow-hover: 0 0 0 2px #ae8884;

    /* ── Graph View ────────────────────────────────────────── */
-    --graph-node:           #b7c4ff;
-    --graph-node-unresolved: #8e909f;
-    --graph-node-focused:   #d5dbff;
-    --graph-node-tag:       #bac4f7;
-    --graph-node-attachment: #ffb59f;
-    --graph-line:           #444653;
-    --graph-background:     #12131a;
+    --graph-node:           #ffb4ac;
+    --graph-node-unresolved: #ae8884;
+    --graph-node-focused:   #ffffff;
+    --graph-node-tag:       #ffb4ac;
+    --graph-node-attachment: #98cbff;
+    --graph-line:           #5d3f3c;
+    --graph-background:     #200f0d;

 }

--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -4,21 +4,21 @@
    "type": "split",
    "children": [
      {
-        "id": "af3dc6a9ef643c24",
+        "id": "81f0ebb32620dead",
        "type": "tabs",
        "children": [
          {
-            "id": "0e89c1d1d5ec049c",
+            "id": "140d404d9b2faf63",
            "type": "leaf",
            "state": {
              "type": "markdown",
              "state": {
-                "file": "10 Courses/02 - SoSe 2026/ET II/Zählpfeilsysteme.md",
+                "file": "00 Inbox/29593852 - Strings.md",
                "mode": "source",
                "source": false
              },
              "icon": "lucide-file",
-              "title": "Zählpfeilsysteme"
+              "title": "29593852 - Strings"
            }
          }
        ]
@@ -78,7 +78,7 @@
      }
    ],
    "direction": "horizontal",
-    "width": 320.50418853759766
+    "width": 349.50418853759766
  },
  "right": {
    "id": "8a65bc0c1d4d98f2",
@@ -182,44 +182,44 @@
      "darlal-switcher-plus:Open Symbols for the active editor": false
    }
  },
-  "active": "0e89c1d1d5ec049c",
+  "active": "140d404d9b2faf63",
  "lastOpenFiles": [
-    "10 Courses/02 - SoSe 2026/ET II/Elektrotechnik II.md",
+    "10 Courses/02 - SoSe 2026/Automatentheorie und formale Sprachen/29593850 - Automationtheory.md",
+    "00 Inbox/29593852 - Strings.md",
+    "10 Courses/02 - SoSe 2026/ET II/29592673 - Elektrotechnik II.md",
    "99 Templates/New File Template.md",
-    "00 Inbox/29592877 - review.md",
-    "00 Inbox/29592872.615316667 - Lecture 1 Recp.md",
-    "00 Inbox/1775572307685 - Lecture 1 Summary.md",
-    "10 Courses/02 - SoSe 2026/ET II/Übungsaufgabe 1.md",
-    "10 Courses/02 - SoSe 2026/ET II/Kirchhoffsche Gesetze.md",
+    "99 Templates/New File Template.md~",
+    "00 Inbox/29593849 - Automationtheory.md",
+    "00 Inbox/29593844 - Basics of formal languages.md",
+    "00 Inbox/29593844 - Automationtheory.md",
+    "00 Inbox/29593843 - newFile.md",
+    "00 Inbox/29593843 - newFile.md",
+    "lol.md",
+    "Natural and Formal Languages.md",
+    "00 Inbox/newfile.md",
+    "00 Inbox/29593832 - 2026-04-08.md",
+    "10 Courses/02 - SoSe 2026/ET II/29592733 - Zählpfeilsysteme.md",
+    "10 Courses/02 - SoSe 2026/Automatentheorie und formale Sprachen",
+    "10 Courses/02 - SoSe 2026/ET II/29592751 - Übungsaufgabe 1.md",
+    "10 Courses/02 - SoSe 2026/ET II/29592755 - Übungsaufgabe 2.md",
+    "20 Atlas/ET II - Map of Content.md",
+    "00 Inbox/29593226 - ET_II_Folien_gesamt_020426.pdf.md",
+    "10 Courses/02 - SoSe 2026/ET II/29592722 - Zeitabhängige Größen.md",
+    "10 Courses/02 - SoSe 2026/ET II/29592709 - Klausur.md",
+    "10 Courses/02 - SoSe 2026/ET II/29592729 - Kirchhoffsche Gesetze.md",
+    "00 Inbox/29593224 - 29593223 - 29593223 - Elektrotechnik II.md",
+    "00 Inbox/29593223 - 29593223 - Elektrotechnik II.md",
+    "00 Inbox/29593223 - Elektrotechnik II.md",
+    "10 Courses/02 - SoSe 2026/Mathe II/29592601 - Integration.md",
+    "20 Atlas",
+    "30 Library/29592593 - ET_II_Folien_gesamt_020426.pdf",
    "10 Courses/02 - SoSe 2026/ET II/Zählpfeilsysteme.md",
-    "10 Courses/02 - SoSe 2026/ET II/Zeitabhängige Größen.md",
-    "10 Courses/02 - SoSe 2026/ET II/Übungsaufgabe 2.md",
    "30 Library/ET_II_Folien_gesamt_020426.pdf",
    "30 Library/d6d88eed747e389e597d2a19bb868ee6?cid=4b45b3a6f32c35a6d9ca5b1b07b760de",
    "30 Library/wget-log",
-    "Untitled.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Formulas.md",
-    "10 Courses/02 - SoSe 2026/Mathe II/Integration.md",
-    "Test File.md",
-    "10 Courses/02 - SoSe 2026/ET II/Klausur.md",
-    "Online test.md",
    "99 Templates/New File Template",
    "99 Templates",
    "00 Inbox",
-    "90 Archive",
-    "30 Library",
-    "10 Courses/01 - WiSe 2025_26",
-    "10 Courses/02 - SoSe 2026",
-    "10 Courses/01 - WiSe 2025_26/DAS/Arithmetic.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Counting.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Relations.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Groups.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Logic.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Functions.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Set Theory.md",
-    "10 Courses/01 - WiSe 2025_26/DAS/Studium.md",
-    "DAS/merge.md",
-    "mathe/notation.md",
    "10 Courses/01 - WiSe 2025_26/ET/images/beispiel_knotenregel.png"
  ]
 }
--- a/.trash/29593223
+++ b/.trash/29593223
@@ -0,0 +1,19 @@
+---
+created: 2026-04-07 22:23
+course:
+topic:
+related:
+type: lecture
+status: 🔴
+tags:
+  - university
+---
+## 📌 Summary
+
+> [!abstract]
+>
+
+---
+
+## 📝 Content
+
--- a/.trash/29593223
+++ b/.trash/29593223
@@ -0,0 +1,19 @@
+---
+created: 2026-04-07 22:23
+course:
+topic:
+related:
+type: lecture
+status: 🔴
+tags:
+  - university
+---
+## 📌 Summary
+
+> [!abstract]
+>
+
+---
+
+## 📝 Content
+
--- a/.trash/29593224
+++ b/.trash/29593224
@@ -0,0 +1,19 @@
+---
+created: 2026-04-07 22:24
+course:
+topic:
+related:
+type: lecture
+status: 🔴
+tags:
+  - university
+---
+## 📌 Summary
+
+> [!abstract]
+>
+
+---
+
+## 📝 Content
+
--- a/ET_II_Folien_gesamt_020426.pdf.md
+++ b/ET_II_Folien_gesamt_020426.pdf.md
@@ -0,0 +1,19 @@
+---
+created: 2026-04-07 22:26
+course:
+topic:
+related:
+type: lecture
+status: 🔴
+tags:
+  - university
+---
+## 📌 Summary
+
+> [!abstract]
+>
+
+---
+
+## 📝 Content
+
--- a/.trash/29593832
+++ b/.trash/29593832
@@ -0,0 +1,19 @@
+---
+created: 2026-04-08 08:32
+course:
+topic:
+related:
+type: lecture
+status: 🔴
+tags:
+  - university
+---
+## 📌 Summary
+
+> [!abstract]
+>
+
+---
+
+## 📝 Content
+
--- a/.trash/newfile.md
+++ b/.trash/newfile.md
--- a/Inbox/29593852
+++ b/Inbox/29593852
@@ -0,0 +1,69 @@
+---
+created: 2026-04-08 08:52
+course: "[[29593850 - Automationtheory]]"
+topic: "#languages #string #character #kleene #regularExpressions"
+related: "[[29593850 - Automationtheory]]"
+type: lecture
+status: 🔴
+tags:
+  - university
+---
+## 📌 Summary
+
+> [!abstract]
+> Overview of lecture 1 on `Wednesday, 2026/Apr/08`
+
+---
+
+## 📝 Content
+
+### Alphabets
+Alphabets are formal, non-empty, sets of symbols (usually lowercase letters). They are denoted by $Sigma$.
+
+$Sigma = {a, b}$
+> Alphabet $Sigma$ contains the characters $a$ and $b$.
+
+### Strings
+A string is a set of letters. If there is an alphabet $Sigma = {a,b}$ then `abba` is a string made from that alphabet.
+The empty string is denoted by $epsilon$, this is the neutral element.
+### Concatenation
+String can be concatenated, where one string is appended to another.
+$"apple" dot "pie" = "applepie"$
+
+$&x = "apple" \ &y = "pie" \ &x dot y = "applepie"$
+
+Order of operations / Brackets do _not matter_.
+Any string concatenated with the empty string $epsilon$ will result in itself.
+
+### Exponentiation
+
+
+### Reversing / Mirroring
+For a string $x = a_1 a_2 ... a_(n-1) a_n$ of length $n$, it's _mirrored string_ is given by 
+$$ x^("Rev") = a_n a_(n-1)...a_2 a_1$$
+
+### Kleene Star
+Denoted by $Sigma^*$. The Kleene Star (or _Kleene Closure_) gives an infinite amount of strings made up of the characters of the alphabet.
+
+$$
+Sigma^* {a, b} = {epsilon, a, b, "aa", "ab", "ba", "bb", "aaa", "aab", ...}
+$$
+> Example of the Kleene Star of the alphabet ${a, b}$
+### Formal Languages
+A formal _language_ of the alphabet $Sigma$ is a subset $L$ of $Sigma^*$
+
+### Finite representation of languages
+**Goal:** Represent a language using _finite_ information
+#### Using set notation
+$S = {a^n b^m bar n, m >= 0} = {epsilon, a, b, "aa", "ab", ...}$
+> This is very inefficient.
+
+#### Using regular expressions
+A _regular expression_ $r$ over an alphabet $Sigma$ is defined recursively:
+- $emptyset, epsilon$ and each $a in Sigma$ are regular expression, which represent the Languages $L(emptyset) = emptyset, L(epsilon) = {epsilon}$ and $L(a) = {a}$
+- If $r$ and $s$ are regular expressions then
+	- $(r+s)$
+<mark style="background: #FF5582A6;">	- !! Complete from leture notes</mark>
+
+### Regular languages
+A language $L$ that can be described by a regular expression $r$ (i. e. $L(r) = L$) is called _regular_.
--- a/2026/Automatentheorie
+++ b/2026/Automatentheorie
@@ -0,0 +1,7 @@
+---
+created: 2026-04-08 08:50
+course: "[[29593850 - Automationtheory]]"
+type: overview
+tags:
+  - university
+---
--- a/II/Elektrotechnik
+++ b/II/Elektrotechnik
@@ -1,3 +1,8 @@
+---
+created: 2026-04-07 14:02
+course: "[[29592673 - Elektrotechnik II]]"
+type: overview
+---
 --- 
 Professor. Dr.-Ing. Christian Becker 
 <mark style="background: #FFF3A3A6;">Zeiten:</mark>
--- a/II/Klausur.md
+++ b/II/Klausur.md
--- a/II/Zeitabhängige
+++ b/II/Zeitabhängige
@@ -1,9 +1,9 @@
 ---
 created: 2026-04-07 14:02
-course: "[[Elektrotechnik II]]"
+course: "[[29592673 - Elektrotechnik II]]"
 topic: "#sine #cosine"
 type: lecture
-status: 🔴
+status: ⚪ - Incomplete
 tags:
  - university
 ---
@@ -13,7 +13,7 @@ tags:
 ## 📌 Summary

 > [!abstract]
->
+> Definition der "Normalform" der Sinusfunktion

 ---

--- a/II/Kirchhoffsche
+++ b/II/Kirchhoffsche
@@ -1,9 +1,9 @@
 ---
 created: 2026-04-07 14:09
-course: "[[Elektrotechnik II]]"
+course: "[[29592673 - Elektrotechnik II]]"
 topic: "#kirchhoffsLaws"
 type: lecture
-status: 🔴
+status: 🟢
 tags:
  - university
 ---
--- a/Zählpfeilsysteme.md
+++ b/Zählpfeilsysteme.md
@@ -0,0 +1,26 @@
+---
+created: 2026-04-07 14:13
+course: "[[29592673 - Elektrotechnik II]]"
+topic:
+type: lecture
+status: 🔴
+tags:
+  - university
+---
+
+# Zählpfeilsysteme
+
+## 📌 Summary
+
+> [!abstract]
+>
+
+---
+
+## 📝 Content
+
+Siehe Seite 27 und 28 in den [[29593226 - ET_II_Folien_gesamt_020426.pdf|Vorlesungsfolien]]:
+
+![[29592593 - ET_II_Folien_gesamt_020426.pdf#page=27]]
+
+
--- a/II/Übungsaufgabe
+++ b/II/Übungsaufgabe
@@ -1,6 +1,6 @@
 ---
 created: 2026-04-07 14:31
-course: "[[Elektrotechnik II]]"
+course: "[[29592673 - Elektrotechnik II]]"
 topic:
 type: task
 status: 🔴
@@ -12,6 +12,6 @@ tags:

 ## 📝 Content

-![[ET_II_Folien_gesamt_020426.pdf#page=54]]
+![[29592593 - ET_II_Folien_gesamt_020426.pdf#page=54]]

 a) $25"ms"$
--- a/II/Übungsaufgabe
+++ b/II/Übungsaufgabe
@@ -1,6 +1,6 @@
 ---
 created: 2026-04-07 14:35
-course:
+course: "[[29592673 - Elektrotechnik II]]"
 topic:
 type: task
 status: 🔴
@@ -11,4 +11,4 @@ tags:
 # Übungsaufgabe 2

 ## 📝 Content
-![[ET_II_Folien_gesamt_020426.pdf#page=55]]
+![[29592593 - ET_II_Folien_gesamt_020426.pdf#page=55]]
--- a/II/Zählpfeilsysteme.md
+++ b/II/Zählpfeilsysteme.md
@@ -1,26 +0,0 @@
---
-created: 2026-04-07 14:13
-course: "[[Elektrotechnik II]]"
-topic:
-type: lecture
-status: 🔴
-tags:
-  - university
---
-
-# Zählpfeilsysteme
-
-## 📌 Summary
-
-> [!abstract]
->
-
---
-
-## 📝 Content
-
-Siehe Seite 27 und 28 in den [[ET_II_Folien_gesamt_020426.pdf|Vorlesungsfolien]]:
-
-![Vorlesungsfolien 27 bis 29](ET_II_Folien_gesamt_020426.pdf#page=27)
-
-
--- a/II/Integration.md
+++ b/II/Integration.md
--- a/Content.md
+++ b/Content.md
@@ -0,0 +1,14 @@
+
+```dataview
+TABLE topic AS "Concept", status AS "Review Status"
+FROM "10 Courses/02 - SoSe 2026/ET II"
+WHERE type = "lecture" OR type = "concept"
+SORT created ASC
+```
+
+```dataview
+TABLE topic AS "Topic", status AS "Status"
+FROM "10 Courses/02 - SoSe 2026/ET II"
+WHERE type = "task"
+SORT created ASC
+```
--- a/Library/ET_II_Folien_gesamt_020426.pdf
+++ b/Library/ET_II_Folien_gesamt_020426.pdf
--- a/Templates/New
+++ b/Templates/New
@@ -1,24 +1,24 @@
-<%*
-// Move the file to the Inbox immediately upon creation
-let date = Math.floor(Date.now() / 60000)
-let newName = `${date} - ${tp.file.title}`
-await tp.file.move("/00 Inbox/" + newName)
-%>
 ---
 created: <% tp.date.now("YYYY-MM-DD HH:mm") %>
-course:
-topic:
+course: 
+topic: 
+related: 
 type: lecture
 status: 🔴
 tags:
  - university
 ---
+<%*
+// Move the file to the Inbox immediately upon creation
+let date = Math.floor(Date.now() / 60000);
+let newName = `${date} - ${tp.file.title}`;
+await tp.file.move("/00 Inbox/" + newName);
+-%>
 ## 📌 Summary

 > [!abstract]
->
+> 

 ---

 ## 📝 Content
-
Author	SHA1	Message	Date
Jan Meyer	cc9610dde0	vault backup: 2026-04-08 09:35:01	2026-04-08 09:35:01 +02:00
Jan Meyer	a5a4c94e2b	vault backup: 2026-04-08 09:07:20	2026-04-08 09:07:20 +02:00
Jan Meyer	29a9b38340	vault backup: 2026-04-08 08:47:52	2026-04-08 08:47:52 +02:00
Jan Meyer	e28d2cb8ed	vault backup: 2026-04-08 08:37:01	2026-04-08 08:37:01 +02:00
Jan Meyer	7f35286f20	vault backup: 2026-04-08 08:32:15	2026-04-08 08:32:15 +02:00
Jan Meyer	3897babce3	vault backup: 2026-04-08 08:25:49	2026-04-08 08:25:49 +02:00
Jan Meyer	d30d56e67b	vault backup: 2026-04-07 22:29:28	2026-04-07 22:29:28 +02:00
Jan Meyer	e3e9e939b1	vault backup: 2026-04-07 22:14:48	2026-04-07 22:14:48 +02:00
Jan Meyer	d4866fc4c8	vault backup: 2026-04-07 22:08:35	2026-04-07 22:08:35 +02:00
Jan Meyer	fd87c7d882	vault backup: 2026-04-07 22:06:15	2026-04-07 22:06:15 +02:00