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2014-01-15 10:11:22 +0200 | commented answer | Isolines of piecewise linear function That's exactly what I need, thank you ;-) |

2014-01-15 09:01:24 +0200 | commented answer | Isolines of piecewise linear function Thanx for the quick answer. In fact, I need a mix of both plot3d and contour_plot : in the 3d plot, I would like to see a sample of lines having the same "z" values, instead of the surface. Best regards, Patrick |

2014-01-15 09:01:08 +0200 | answered a question | Isolines of piecewise linear function Thanx for the quick answer. In fact, I need a mix of both plot3d and contour_plot : in the 3d plot, I would like to see a sample of lines having the same "z" values, instead of the surface. Best regards, Patrick |

2014-01-15 07:47:34 +0200 | asked a question | Isolines of piecewise linear function Hi, I'm trying to find out how to plot isolines (in 3D) of the following function : z = 0.2 x + 0.8 y if x < y and z = 0.6 x+0.4 y if x >= y Thanks in advance for any help, Patrick |

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