wording (sec 17)

Chapter17/Figures/figure-framing-schematic.tex

@@ -3,7 +3,7 @@
 
 \begin{tikzpicture}[node distance = 0,scale = 1]
 \tikzstyle{every node}=[scale=1]
-\node [anchor=center](ori) at (-0.2,-0.2) {$O$};
+\node [anchor=center](ori) at (-0.2,-0.2) {0};
 \draw[->,thick](-0.5,0)--(5,0)node[below,scale=0.8]{时间};
 \draw[->,thick](0,-2)--(0,2)node[left,scale=0.8]{量化值};
 \draw[-,thick](0,0)sin(0.7,1.5)cos(1.4,0)sin(2.1,-1.5)cos(2.8,0)sin(3.5,1.5)cos(4.2,0);