比如说吧:
p1 := plots[inequal]({0 < 3*y-x-2,sin(x)+sin(y) < .5,x^2-y < 0,x^2+y^2 < 9},x = -2 ..2,y = 0 ..3,color = yellow);
p2 := plots[inequal]({sin(x)+sin(y) >= .5,0 < 3*y-x-2,x^2-y < 0,x^2+y^2 < 9},x = -2 ..2,y = 0 ..3,color = red);
plots[display](p1,p2);
只是想显示第一个图的话直接把p1:=去掉就行了,只有想在一个图中显示多个结果才需要用display.