fix logn slide

lectures/complexity/slides.qmd

@@ -87,17 +87,17 @@ None
 
 ## Quiz {.special auto-animate=true auto-animate-restart=true}
 
-How large is $\mathcal{O}(\log{n})$ on a computer?
+How large is $\log{n}$ on a computer?
 
 ## Quiz {.special auto-animate=true}
 
-How large is $\mathcal{O}(\log{n})$ on a computer?
+How large is $\log{n}$ on a computer?
 
 `64`{data-id=64}
 
 ## Quiz {.special auto-animate=true}
 
-How large is $\mathcal{O}(\log{n})$ on a computer?
+How large is $\log{n}$ on a computer?
 
 `64`{data-id=64} (at least on a 64 bit machine)