diff --git a/src/Numerics/LinearAlgebra/Complex/DenseMatrix.cs b/src/Numerics/LinearAlgebra/Complex/DenseMatrix.cs
index 64b2c35c..c42c2915 100644
--- a/src/Numerics/LinearAlgebra/Complex/DenseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Complex/DenseMatrix.cs
@@ -340,6 +340,7 @@ namespace MathNet.Numerics.LinearAlgebra.Complex
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, denseResult.Data);
             }
         }
@@ -397,7 +398,7 @@ namespace MathNet.Numerics.LinearAlgebra.Complex
                     1.0,
                     denseLeft.Data,
                     1,
-                    denseResult.Count,
+                    denseLeft.Count,
                     Data,
                     RowCount,
                     ColumnCount,
diff --git a/src/Numerics/LinearAlgebra/Complex/SparseMatrix.cs b/src/Numerics/LinearAlgebra/Complex/SparseMatrix.cs
index 0f163b37..df3d0c13 100644
--- a/src/Numerics/LinearAlgebra/Complex/SparseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Complex/SparseMatrix.cs
@@ -1238,6 +1238,7 @@ namespace MathNet.Numerics.LinearAlgebra.Complex
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, sparseResult._nonZeroValues);
             }
         }
diff --git a/src/Numerics/LinearAlgebra/Complex32/DenseMatrix.cs b/src/Numerics/LinearAlgebra/Complex32/DenseMatrix.cs
index 5a348928..33309ce5 100644
--- a/src/Numerics/LinearAlgebra/Complex32/DenseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Complex32/DenseMatrix.cs
@@ -340,6 +340,7 @@ namespace MathNet.Numerics.LinearAlgebra.Complex32
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, denseResult.Data);
             }
         }
@@ -397,7 +398,7 @@ namespace MathNet.Numerics.LinearAlgebra.Complex32
                     1.0f,
                     denseLeft.Data,
                     1,
-                    denseResult.Count,
+                    denseLeft.Count,
                     Data,
                     RowCount,
                     ColumnCount,
diff --git a/src/Numerics/LinearAlgebra/Complex32/SparseMatrix.cs b/src/Numerics/LinearAlgebra/Complex32/SparseMatrix.cs
index 10130dc7..6868b6b4 100644
--- a/src/Numerics/LinearAlgebra/Complex32/SparseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Complex32/SparseMatrix.cs
@@ -1238,6 +1238,7 @@ namespace MathNet.Numerics.LinearAlgebra.Complex32
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, sparseResult._nonZeroValues);
             }
         }
diff --git a/src/Numerics/LinearAlgebra/Double/DenseMatrix.cs b/src/Numerics/LinearAlgebra/Double/DenseMatrix.cs
index d1c85275..03a600b5 100644
--- a/src/Numerics/LinearAlgebra/Double/DenseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Double/DenseMatrix.cs
@@ -329,6 +329,7 @@ namespace MathNet.Numerics.LinearAlgebra.Double
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, denseResult.Data);
             }
         }
diff --git a/src/Numerics/LinearAlgebra/Double/SparseMatrix.cs b/src/Numerics/LinearAlgebra/Double/SparseMatrix.cs
index de711c67..1a22e8d3 100644
--- a/src/Numerics/LinearAlgebra/Double/SparseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Double/SparseMatrix.cs
@@ -1237,6 +1237,7 @@ namespace MathNet.Numerics.LinearAlgebra.Double
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, sparseResult._nonZeroValues);
             }
         }
diff --git a/src/Numerics/LinearAlgebra/Generic/Matrix.Arithmetic.cs b/src/Numerics/LinearAlgebra/Generic/Matrix.Arithmetic.cs
index c6f1ba62..d4afb9a4 100644
--- a/src/Numerics/LinearAlgebra/Generic/Matrix.Arithmetic.cs
+++ b/src/Numerics/LinearAlgebra/Generic/Matrix.Arithmetic.cs
@@ -218,7 +218,7 @@ namespace MathNet.Numerics.LinearAlgebra.Generic
                 return;
             }
 
-            CopyTo(result);
+            //CopyTo(result);
             DoMultiply(scalar, result);
         }
 
diff --git a/src/Numerics/LinearAlgebra/Single/DenseMatrix.cs b/src/Numerics/LinearAlgebra/Single/DenseMatrix.cs
index 5a790c6b..baa3eef4 100644
--- a/src/Numerics/LinearAlgebra/Single/DenseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Single/DenseMatrix.cs
@@ -329,6 +329,7 @@ namespace MathNet.Numerics.LinearAlgebra.Single
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, denseResult.Data);
             }
         }
@@ -386,7 +387,7 @@ namespace MathNet.Numerics.LinearAlgebra.Single
                     1.0f,
                     denseLeft.Data,
                     1,
-                    denseResult.Count,
+                    denseLeft.Count,
                     Data,
                     RowCount,
                     ColumnCount,
diff --git a/src/Numerics/LinearAlgebra/Single/SparseMatrix.cs b/src/Numerics/LinearAlgebra/Single/SparseMatrix.cs
index 35076359..a8b74f5b 100644
--- a/src/Numerics/LinearAlgebra/Single/SparseMatrix.cs
+++ b/src/Numerics/LinearAlgebra/Single/SparseMatrix.cs
@@ -1237,6 +1237,7 @@ namespace MathNet.Numerics.LinearAlgebra.Single
             }
             else
             {
+                CopyTo(result);
                 Control.LinearAlgebraProvider.ScaleArray(scalar, sparseResult._nonZeroValues);
             }
         }