Tom's second Feb 11 edit of svd lecture

Author: thomassargent30

lectures/svd_intro.md

@@ -658,7 +658,7 @@ To construct a DMD, we deploy the following steps:
   
   where evidently $b$ is an $\tilde r \times 1$ vector.
     
-With $\Lambda, \Phi, \Phi^{+}$ in hand, our least-squares fitted dynamics fitted to the $r$ dominant modes
+With $\Lambda, \Phi, \Phi^{+}$ in hand, our least-squares fitted dynamics fitted to the $\tilde r$ dominant modes
 are governed by
 
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