hello all,

I need to know the method of plotting the feasible region of inequality function like the following nonlinear function

$\displaystyle (1-x1)^3-x2 >=0$

I know how to plot the region for the linear function like

$\displaystyle x1+x2<=5$ - line connect $\displaystyle x1=5$ to $\displaystyle x2=5$ with the region under the line as a feasible region.

Regards.