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when toggle format what by license comment
Apr 8, 2016 at 22:50 comment added Nabil there is 4 bowl-like in the 3-D graph which shows the minimum point. how can we know the 4 minimum points of the graph? @ubpdqn
Apr 8, 2016 at 14:24 vote accept Nabil
Apr 8, 2016 at 23:17
Apr 8, 2016 at 12:14 history answered ubpdqn CC BY-SA 3.0