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^2,v-v^3/3+v*u^2,u^2-v^2],u=-3..3,v=-3..3,scaling=constrained,lightmod
el=light2,orientation=[89,80]);\nplot3d([u-u^3/3+u*v^2,v-v^3/3+v*u^2,u
^2-v^2],u=-3..3,v=-3..3,scaling=constrained,lightmodel=light2,orientat
ion=[90,0]);\nplot3d([u-u^3/3+u*v^2,v-v^3/3+v*u^2,u^2-v^2],u=-3..3,v=-
3..3,scaling=constrained,lightmodel=light2,orientation=[1,87]);" }}
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