Update linearAgrbra.md

870138612 · Nov 27, 2024 · e08fa41 · e08fa41
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commit e08fa41
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/note/linearAgrbra.md b/src/note/linearAgrbra.md
@@ -1145,7 +1145,7 @@ $$
 
 - 正定的必要条件
 
-    - $A$正定则$a_ii>0(i=1,2,\cdots,n)$.
+    - $A$正定则$a_{ii}>0(i=1,2,\cdots,n)$.
 
     - $A$正定则$|A|>0$.