diff --git a/content/Obsidian Vault/.obsidian/app.json b/content/Obsidian Vault/.obsidian/app.json
new file mode 100644
index 000000000..67a34912f
--- /dev/null
+++ b/content/Obsidian Vault/.obsidian/app.json	
@@ -0,0 +1,7 @@
+{
+  "alwaysUpdateLinks": true,
+  "vimMode": true,
+  "useMarkdownLinks": false,
+  "legacyEditor": false,
+  "livePreview": true
+}
\ No newline at end of file
diff --git a/content/Obsidian Vault/.obsidian/core-plugins.json b/content/Obsidian Vault/.obsidian/core-plugins.json
new file mode 100644
index 000000000..28e09b0a0
--- /dev/null
+++ b/content/Obsidian Vault/.obsidian/core-plugins.json	
@@ -0,0 +1,21 @@
+[
+  "file-explorer",
+  "global-search",
+  "switcher",
+  "graph",
+  "backlink",
+  "outgoing-link",
+  "tag-pane",
+  "page-preview",
+  "note-composer",
+  "command-palette",
+  "starred",
+  "markdown-importer",
+  "outline",
+  "slides",
+  "audio-recorder",
+  "open-with-default-app",
+  "workspaces",
+  "file-recovery",
+  "sync"
+]
\ No newline at end of file
diff --git a/content/vault/.obsidian/app.json b/content/vault/.obsidian/app.json
index 26d005431..4cc5b0469 100644
--- a/content/vault/.obsidian/app.json
+++ b/content/vault/.obsidian/app.json
@@ -1,5 +1,8 @@
 {
   "alwaysUpdateLinks": true,
   "vimMode": true,
-  "useMarkdownLinks": false
+  "useMarkdownLinks": false,
+  "legacyEditor": false,
+  "livePreview": true,
+  "newLinkFormat": "absolute"
 }
\ No newline at end of file
diff --git a/content/vault/.obsidian/workspace b/content/vault/.obsidian/workspace
index 5f4f8c8ab..be3f45473 100644
--- a/content/vault/.obsidian/workspace
+++ b/content/vault/.obsidian/workspace
@@ -9,8 +9,9 @@
         "state": {
           "type": "markdown",
           "state": {
-            "file": "econometrics/stats-econ-lecture-notes-plus.md",
-            "mode": "source"
+            "file": "taylor.md",
+            "mode": "source",
+            "source": false
           }
         },
         "group": "06317d38b659cb78"
@@ -21,8 +22,9 @@
         "state": {
           "type": "markdown",
           "state": {
-            "file": "econometrics/stats-econ-lecture-notes-plus.md",
-            "mode": "preview"
+            "file": "taylor.md",
+            "mode": "preview",
+            "source": false
           }
         },
         "group": "06317d38b659cb78"
@@ -52,7 +54,7 @@
             "state": {
               "type": "search",
               "state": {
-                "query": "{{q}",
+                "query": "tag:#math/calculus",
                 "matchingCase": true,
                 "explainSearch": false,
                 "collapseAll": false,
@@ -76,7 +78,8 @@
               "type": "markdown",
               "state": {
                 "file": "sequence.md",
-                "mode": "preview"
+                "mode": "preview",
+                "source": false
               }
             }
           }
@@ -101,7 +104,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "econometrics/stats-econ-lecture-notes-plus.md",
+                "file": "taylor.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -118,7 +121,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "econometrics/stats-econ-lecture-notes-plus.md",
+                "file": "taylor.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -130,7 +133,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "econometrics/stats-econ-lecture-notes-plus.md"
+                "file": "taylor.md"
               }
             }
           },
@@ -154,6 +157,8 @@
   },
   "active": "e6ce38905c7e26b9",
   "lastOpenFiles": [
+    "taylor.md",
+    "binomial series.md",
     "econometrics/stats-econ-lecture-notes-plus.md",
     "recovered stats lecture notes.md",
     "econometrics/stats-econ-lecture-notes.md",
@@ -161,8 +166,6 @@
     "mean value theorem.md",
     "Integration by Parts.md",
     "systems of linear equations and matrices..md",
-    "ss12.md",
-    "ss15.md",
-    "ss16.md"
+    "ss12.md"
   ]
 }
\ No newline at end of file
diff --git a/content/vault/binomial series.md b/content/vault/binomial series.md
index 433f1a1dc..e5de597df 100644
--- a/content/vault/binomial series.md	
+++ b/content/vault/binomial series.md	
@@ -1,3 +1,6 @@
+---
+title: binomial series
+---
 #math/calculus 
 
 $|x|<1$
diff --git a/content/vault/taylor.md b/content/vault/taylor.md
index b99f48bd9..a76eb83b3 100644
--- a/content/vault/taylor.md
+++ b/content/vault/taylor.md
@@ -1,3 +1,6 @@
+---
+title: "taylor"
+---
 #math/calculus 
 
 # formula