Update orth_proj_thm2.tex

Author: longye-tian

lectures/_static/lecture_specific/orth_proj/orth_proj_thm2.tex

@@ -3,9 +3,11 @@
 \usetikzlibrary{arrows.meta, arrows}
 \begin{document}
 
-%.. tikz:: 
 \begin{tikzpicture}
-[scale=5, axis/.style={<->, >=stealth'}, important line/.style={thick}, dotted line/.style={dotted, thick,red}, dashed line/.style={dashed, thin}, every node/.style={color=black}] \coordinate(O) at (0,0);
+[scale=5, axis/.style={<->, >=stealth'}, important line/.style={thick}, 
+dotted line/.style={dotted, thick,red}, dashed line/.style={dashed, thin}, 
+every node/.style={color=black}] 
+    \coordinate(O) at (0,0);
     \coordinate (y') at (-0.4,0.1);
     \coordinate (Py) at (0.6,0.3);
     \coordinate (y) at (0.4,0.7);
@@ -14,11 +16,12 @@
     \coordinate (Py') at (-0.28,-0.14);
     \draw[axis] (-0.5,0)  -- (0.9,0) node(xline)[right] {};
     \draw[axis] (0,-0.3) -- (0,0.7) node(yline)[above] {};
+    \draw[important line, thick]  (Z1) -- (O);
+    \draw[important line, thick]  (Py) -- (Z2) node[right] {$S$};
     \draw[important line,blue,thick, ->]  (O) -- (Py) node[anchor = north west, text width=2em] {$P y$};
     \draw[important line,blue, ->]  (O) -- (y') node[left] {$y'$};
-    \draw[important line, thick]  (Z1) -- (O) node[right] {};
-    \draw[important line, thick]  (Py) -- (Z2) node[right] {$S$};
     \draw[important line, blue,->]  (O) -- (y) node[right] {$y$};
+    \draw[important line,blue,thick, ->]  (O) -- (Py');
     \draw[dotted line] (0.54,0.27) -- (0.51,0.33);
     \draw[dotted line] (0.57,0.36) -- (0.51,0.33);
     \draw[dotted line] (-0.22,-0.11) -- (-0.25,-0.05);