diff --git a/matrix.c b/matrix.c
index 20bb3ca..d3f9afb 100644
--- a/matrix.c
+++ b/matrix.c
@@ -5,44 +5,6 @@
 
 // TODO Matrix-Funktionen implementieren
 
-/*
-Alte Funktion
-Matrix createMatrix(unsigned int rows, unsigned int cols)
-{
-    Matrix m;
-    m.rows = rows;
-    m.cols = cols;
-    m.data = NULL;
-
-    if(rows == 0 || cols == 0){
-        m.rows = m.cols = 0;
-        return m;
-    }
-
-    m.data = malloc(rows * sizeof *m.data);
-    
-    if(!m.data){
-        m.rows = m.cols = 0;
-        return m;
-    }
-    for(unsigned int i = 0; i < rows; i++){
-        m.data[i] = malloc(cols * sizeof *m.data[i]);
-      
-      if(!m.data[i]){
-        for(unsigned int j = 0; j < i; j++){
-            free(m.data[j]);
-        }
-        free(m.data);
-        m.data = NULL;
-        m.rows = m.cols = 0;
-        return m;
-      }
-        
-    }
-    return m;
-}
-*/
-
 Matrix createMatrix(size_t rows, size_t cols)
 {
     Matrix m;
@@ -110,66 +72,6 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
     else return 0;
 }
 
-/*
-Matrix add(const Matrix matrix1, const Matrix matrix2)
-{
-    //check if the matrices are able to be added (same size)
-    if (matrix1.cols == matrix2.cols && matrix1.rows == matrix2.rows){
-        //size of the matrices should be the same, if the addition is supposed to happen
-        // Matrix outputMatrix = createMatrix(matrix1.rows, matrix1.cols);
-        Matrix outputMatrix = createMatrix(matrix1.rows, matrix1.cols);
-        for (int i = 0; i < matrix1.rows;i++) {
-            for (int j = 0; j < matrix1.cols; j++) {
-                // how this should work in normal Matrix version:
-                // outputmatrix.buffer[i][j] = matrix1.buffer[i][j] + matrix2.buffer[i][j];
-                outputMatrix.buffer[i + outputMatrix.rows* j] = matrix1.buffer[i + matrix1.rows* j] + matrix2.buffer[i + matrix2.rows * j];
-            }
-        }
-        return outputMatrix;
-    } else {
-        //the matrix could not be added, since the matrix sizes are not set correct.
-        Matrix m;
-        m.rows = 0; 
-        m.cols = 0;
-        m.buffer = NULL;
-        return m;
-    }
-
-}
-*/
-
-//Currently working version
-/*
-Matrix add(const Matrix matrix1, const Matrix matrix2)
-{
-    //check if the matrices are able to be added (same size)
-    if (matrix1.cols != matrix2.cols && matrix1.rows != matrix2.rows){
-        Matrix m = {NULL, 0, 0};
-        return m;
-    }
-        
-
-    //size of the matrices should be the same, if the addition is supposed to happen
-    Matrix outputMatrix = createMatrix(matrix1.rows, matrix1.cols);
-
-    if(!outputMatrix.buffer){
-        Matrix m = {NULL, 0, 0};
-        return m;
-    }
-
-    for (int i = 0; i < matrix1.rows;i++) {
-        for (int j = 0; j < matrix1.cols; j++) {
-            // how this should work in normal Matrix version:
-            // outputmatrix.buffer[i][j] = matrix1.buffer[i][j] + matrix2.buffer[i][j];
-            outputMatrix.buffer[i * outputMatrix.cols + j] = matrix1.buffer[i * matrix1.cols + j] + matrix2.buffer[i * matrix2.cols + j];
-        }
-    }
-    return outputMatrix;
-
-}
-*/
-
-
 Matrix add(const Matrix matrix1, const Matrix matrix2)
 {
 
@@ -219,35 +121,6 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
 
 }
 
-/*
-Matrix multiply(const Matrix matrix1, const Matrix matrix2)
-{
-    
-    //check, if the matrices can be multiplied
-    if (matrix1.rows == matrix2.cols) {
-        Matrix outputMatrix = createMatrix(matrix1.rows, matrix2.cols);
-        //Matrix outputMatrix = createMatrix(matrix2.cols, matrix1.rows);
-        for(int i = 0; i < matrix1.rows; i++) {
-            for (int j = 0; j < matrix2.cols; j++) {
-                for (int k = 0; k < matrix2.rows; k++) {
-                    // how this should work in normal Matrix version:
-                    // outputMatrix.buffer[i][j] = matrix1.buffer[i][k] * matrix2.buffer[k][j];
-                    outputMatrix.buffer[i + outputMatrix.rows * j] += matrix1.buffer[i + matrix1.rows * k] * matrix2.buffer[k + matrix2.rows * j];
-                }
-            }
-        }
-        return outputMatrix;
-    } else {
-        //the matrix could not be added, since the matrix sizes are not set correct.
-        Matrix m;
-        m.rows = 0; 
-        m.cols = 0;
-        m.buffer = NULL;
-        return m;
-    }
-}
-*/
-
 
 Matrix multiply(const Matrix matrix1, const Matrix matrix2)
 {