Changeset 16646

Timestamp:

03/01/19 11:01:18 (6 years ago)

Author:

gkronber

Message:

#2966: fixed bug in Interval.Multiply

Location:

trunk

Files:

• HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Interval.cs (modified) (1 diff)
• HeuristicLab.Tests/HeuristicLab.Problems.DataAnalysis-3.4/IntervalTest.cs (modified) (1 diff)

trunk/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Interval.cs

@@ -124 +124 @@
 
       double min = Math.Min(Math.Min(v1, v2), Math.Min(v3, v4));
-      double max = Math.Max(Math.Min(v1, v2), Math.Max(v3, v4));
+      double max = Math.Max(Math.Max(v1, v2), Math.Max(v3, v4));
       return new Interval(min, max);
     }

trunk/HeuristicLab.Tests/HeuristicLab.Problems.DataAnalysis-3.4/IntervalTest.cs

@@ -51 +51 @@
       //([-1, 1] * [0, 3]) * [-2, 2] = [-6, 6]
       Assert.AreEqual<Interval>(Interval.Multiply(Interval.Multiply(a, c), b), new Interval(-6, 6));
+
+      // [-2, 0] * [-2, 0]  = [0, 4]
+      Assert.AreEqual<Interval>(new Interval(0, 4), Interval.Multiply(new Interval(-2, 0), new Interval(-2, 0)));
     }