diff --git a/src/main/java/org/la4j/linear/GaussianSolver.java b/src/main/java/org/la4j/linear/GaussianSolver.java
index 9d02a8f7..ed90830d 100644
--- a/src/main/java/org/la4j/linear/GaussianSolver.java
+++ b/src/main/java/org/la4j/linear/GaussianSolver.java
@@ -105,7 +105,7 @@ private Matrix createExtendTriangleMatrix(Matrix matrix) {
 
     private Vector retraceGaus(Matrix matrix, Factory factory) {
 
-        if (Math.abs(matrix.product()) < Matrices.EPS) {
+        if (Math.abs(matrix.diagonalProduct()) < Matrices.EPS) {
             throw new IllegalArgumentException("This system hasn't solution.");
         }
 
diff --git a/src/main/java/org/la4j/matrix/AbstractMatrix.java b/src/main/java/org/la4j/matrix/AbstractMatrix.java
index 739c0c5f..e83f1712 100644
--- a/src/main/java/org/la4j/matrix/AbstractMatrix.java
+++ b/src/main/java/org/la4j/matrix/AbstractMatrix.java
@@ -229,7 +229,7 @@ public double determinant() {
                    get(0, 0) * get(1, 2) * get(2, 1);
         }
 
-        return decompose(Matrices.CROUT_DECOMPOSITOR)[0].product();
+        return decompose(Matrices.CROUT_DECOMPOSITOR)[0].diagonalProduct();
     }
 
     @Override
@@ -544,7 +544,7 @@ public double trace() {
     }
 
     @Override
-    public double product() {
+    public double diagonalProduct() {
 
         double result = 1;
 
diff --git a/src/main/java/org/la4j/matrix/AbstractSafeMatrix.java b/src/main/java/org/la4j/matrix/AbstractSafeMatrix.java
index 88802744..8833ef08 100644
--- a/src/main/java/org/la4j/matrix/AbstractSafeMatrix.java
+++ b/src/main/java/org/la4j/matrix/AbstractSafeMatrix.java
@@ -217,8 +217,8 @@ public double trace() {
     }
 
     @Override
-    public double product() {
-        return self.product();
+    public double diagonalProduct() {
+        return self.diagonalProduct();
     }
 
     @Override
diff --git a/src/main/java/org/la4j/matrix/Matrix.java b/src/main/java/org/la4j/matrix/Matrix.java
index ddea8882..bb6bba26 100644
--- a/src/main/java/org/la4j/matrix/Matrix.java
+++ b/src/main/java/org/la4j/matrix/Matrix.java
@@ -311,7 +311,7 @@ public interface Matrix extends Externalizable {
      * 
      * @return the product of diagonal elements of this matrix
      */
-    double product();
+    double diagonalProduct();
 
     /**
      * Returns the "determinant" of this matrix.
diff --git a/src/test/java/org/la4j/matrix/AbstractMatrixTest.java b/src/test/java/org/la4j/matrix/AbstractMatrixTest.java
index 36497940..1d0811be 100644
--- a/src/test/java/org/la4j/matrix/AbstractMatrixTest.java
+++ b/src/test/java/org/la4j/matrix/AbstractMatrixTest.java
@@ -764,7 +764,7 @@ public void testProduct_3x3() {
                 { 0.0, 0.0, 9.0 }
         });
 
-        assertTrue(Math.abs(a.product() - 45.0) < Matrices.EPS);
+        assertTrue(Math.abs(a.diagonalProduct() - 45.0) < Matrices.EPS);
     }
 
     public void testDeterminant_3x3() {