diff --git a/notes/.obsidian/plugins/obsidian-activity-history/data.json b/notes/.obsidian/plugins/obsidian-activity-history/data.json
index eadc42f..d92ac8a 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": "2023-10-25",
-      "size": 1606668
+      "date": "2023-10-26",
+      "size": 1607385
     }
   ],
   "activityHistory": [
@@ -1371,6 +1371,10 @@
         {
           "date": "2023-10-25",
           "value": 1248
+        },
+        {
+          "date": "2023-10-26",
+          "value": 725
         }
       ]
     }
diff --git a/notes/.obsidian/workspace.json b/notes/.obsidian/workspace.json
index e5432d2..163cf96 100644
--- a/notes/.obsidian/workspace.json
+++ b/notes/.obsidian/workspace.json
@@ -25,7 +25,7 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "ONA/Vyvoj lidske spolecnosti.md",
+                "file": "kbb/math/Modulární aritmetika.md",
                 "mode": "source",
                 "source": false
               }
@@ -98,7 +98,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "ONA/Vyvoj lidske spolecnosti.md",
+                "file": "kbb/math/Modulární aritmetika.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -115,7 +115,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "ONA/Vyvoj lidske spolecnosti.md",
+                "file": "kbb/math/Modulární aritmetika.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -162,7 +162,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "ONA/Vyvoj lidske spolecnosti.md"
+                "file": "kbb/math/Modulární aritmetika.md"
               }
             }
           },
diff --git a/notes/kbb/math/Modulární aritmetika.md b/notes/kbb/math/Modulární aritmetika.md
index 65f3e8b..aa412a9 100644
--- a/notes/kbb/math/Modulární aritmetika.md	
+++ b/notes/kbb/math/Modulární aritmetika.md	
@@ -48,3 +48,29 @@ $131-26=105$
 
 ---
 
+$217 \in Z_{47}$ => $29$
+
+|        | $\alpha$ | $\beta$ | q   |
+| ------ | -------- | ------- | --- |
+| $a=47$ | 1        | 0       |     |
+| $b=29$ | 0        | 1       | 1   |
+| 18     | 1        | -1      | 2   |
+| 11     | -2       | 3       | 4   |
+| 3      | 9        | -13     | 15  |
+| 2      | -137     | 198     | 23  |
+| 1      | 3160     | -4567        |     |
+
+$29^{-1}=39$
+spatne :)))
+
+---
+
+|         | $\alpha$ | $\beta$ | q   |
+| ------- | -------- | ------- | --- |
+| $a=299$ | 1        | 0       |     |
+| $b=109$ | 0        | 1       | 2   |
+| 81      | 1        | -2      | 3   |
+| 56      | -3       | 7       | 5   |
+| 19      | 16       | -37     | 15  |
+| 14      | -243     | 562     | 21  |
+| 5       |          |         |     |