diff --git a/MathLib/LinAlg/SystemOfLinearEquations/ISystemOfLinearEquations.h b/MathLib/LinAlg/SystemOfLinearEquations/ISystemOfLinearEquations.h
index 2192f0f8215c198a80588e70779068f14574cecb..eaf0cf365218d223e6e753fdfd58ae60bd882b69 100644
--- a/MathLib/LinAlg/SystemOfLinearEquations/ISystemOfLinearEquations.h
+++ b/MathLib/LinAlg/SystemOfLinearEquations/ISystemOfLinearEquations.h
@@ -67,15 +67,6 @@ public:
     /// return dimension of this equation
     virtual std::size_t getDimension() const = 0;
 
-    /**
-     * get an entry in a matrix
-     *
-     * @param rowId
-     * @param colId
-     * @return value
-     */
-    virtual double getMatEntry(std::size_t rowId, std::size_t colId) const = 0;
-
     /**
      * set an entry in a matrix
      *