 
 
 
 
 
   
| ContourPlot[] で等高線を描く | 
| In[]:= ContourPlot[x^2 -y^2,{x,-2,2},{y,-2,2},ContourShading->None] | 
| ImplicitPlot[] で陰関数を描く (古い) | 
| In[]:= Needs["Graphics`ImplictiPlot`"] In[]:= ImplictiPlot[x^2 -y^2==0,{x,-2,2}] | 
| ContourPlot[] で陰関数を描く | 
| In[]:= ContourPlot[x^2 -y^2==0,{x,-2,2}] | 
 
 
 
 
