diff --git a/.obsidian/plugins/obsidian-git/data.json b/.obsidian/plugins/obsidian-git/data.json
index 7b1247f..4bc189e 100644
--- a/.obsidian/plugins/obsidian-git/data.json
+++ b/.obsidian/plugins/obsidian-git/data.json
@@ -2,7 +2,7 @@
   "commitMessage": "vault backup: {{date}}",
   "autoCommitMessage": "vault backup: {{date}}",
   "commitDateFormat": "YYYY-MM-DD HH:mm:ss",
-  "autoSaveInterval": 1,
+  "autoSaveInterval": 5,
   "autoPushInterval": 0,
   "autoPullInterval": 5,
   "autoPullOnBoot": false,
diff --git a/education/math/Matrices.md b/education/math/Matrices.md
index f262d3d..bfa129f 100644
--- a/education/math/Matrices.md
+++ b/education/math/Matrices.md
@@ -11,4 +11,9 @@ $$
 1 & 2 & 3|4\\
 4 & 5 & 6|5
 \end{bmatrix}
-$$
\ No newline at end of file
+$$
+## Multiplying matrices
+To multiply two matrices, the number of columns for the first option must match the number of columns in the second.
+
+To get answers, go through each entry in the second matrix, entry by entry, and multiply by every item in the matching row of the first one, then add all of those together,
+