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17.4.1  Graphing inequalities with two variables

The plotinequation or inequationplot command plots the region of the plane where given inequalities hold.

Examples

plotinequation(x^2-y^2<3,[x=-2..2,y=-2..2],xstep=0.1,ystep=0.1)
plotinequation([x+y>3,x^2<y],[x-2..2,y=-1..10],xstep=0.2,ystep=0.2)

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