var('x y z')
(x, y, z) (x, y, z) |
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a = 1
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pl1 = implicit_plot(x*(x-z)*(x+z)-z, (x,-a,a), (z,-a,a))
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pl2 = plot( x^3, (x,-a, a), color = 'red' )
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pl1 + pl2
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a = .4
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pl1 = implicit_plot(x*(x-1)*(x+1)-y^2, (x,-a,a), (y,-a,a))
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pl2 = implicit_plot( y^2+x, (x,-a, a), (y, -a, a), color = 'red' )
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pl3 = implicit_plot( y^2-y^6+x, (x,-a, a), (y, -a, a), color = 'green' )
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pl1 + pl2 + pl3
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