#### 8.1.10 Implicit

• Implicit( <f(x,y)> [, n, m] ).
• Description: draw the implicit curve of equation $f\left(x,y\right)=0$. The abscissa interval is divided into <n> parts and the ordinate’s into <m> parts ($n=m=50$ by default). On each pad, a sign change is tested. If yes, then a dichotomy is applied on the edges of the pad.

 \begin{texgraph}[name=Implicit,export=pgf]   view(-5,5,-5,5),Marges(0,0,0,0),   size(7.5), Arrows:=1, Width:=4,   Axes(0,1+i), Arrows:=0,   Width:=8, Color:=red,   Implicit( sin(x*y) )   \end{texgraph}

$sin\left(xy\right)=0$ equation