update medias and lecture notes

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Zheyuan Wu
2025-04-25 10:04:28 -05:00
parent f99983a53e
commit 41480bc789
3 changed files with 177 additions and 1 deletions

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@@ -135,7 +135,7 @@ $$
##### Approaches 3: Linear approach
$x_1\simeq P_1X$ and $x_2\simeq P_2X$
$x_1\cong P_1X$ and $x_2\cong P_2X$
$x_1\times P_1X = 0$ and $x_2\times P_2X = 0$