Changeset 8437 for branches/NCA/HeuristicLab.Algorithms.NCA/3.3/Matrix.cs

Timestamp:

08/08/12 16:46:53 (12 years ago)

Author:

abeham

Message:

#1913:

• Improved speed of NCA
• Reorganized things

File:

• branches/NCA/HeuristicLab.Algorithms.NCA/3.3/Matrix.cs (modified) (1 diff)

branches/NCA/HeuristicLab.Algorithms.NCA/3.3/Matrix.cs

@@ -125 +125 @@
     }
 
-    public double Length() {
+    public double VectorLength() {
+      return Math.Sqrt(SquaredVectorLength());
+    }
+
+    public double SquaredVectorLength() {
       if (Rows != 1) throw new ArgumentException("Length only works on vectors.");
-      return Math.Sqrt(values.Sum(x => x * x));
+      return values.Sum(x => x * x);
     }