diff --git a/info2praktikum-neuronalesnetz/matrix.c b/info2praktikum-neuronalesnetz/matrix.c
index cf6fe65..2563a0e 100644
--- a/info2praktikum-neuronalesnetz/matrix.c
+++ b/info2praktikum-neuronalesnetz/matrix.c
@@ -10,8 +10,8 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
   Matrix matrix;
   matrix.rows = rows;
   matrix.cols = cols;
-  matrix.data = (float *)malloc(rows * cols * sizeof(MatrixType));
-  if (matrix.data != NULL) {
+  matrix.buffer = (float *)malloc(rows * cols * sizeof(MatrixType));
+  if (matrix.buffer != NULL) {
 
   }
   return matrix;
@@ -20,21 +20,21 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
 
 void clearMatrix(Matrix *matrix)
 {
-  if (matrix->data != NULL) {
-    free(matrix->data);
-    matrix->data = NULL;
+  if (matrix->buffer != NULL) {
+    free(matrix->buffer);
+    matrix->buffer = NULL;
   }
   matrix->rows = 0;
   matrix->cols = 0;
 }
 
 
-void setMatrixAt(MatrixType value, Matrix* matrix, unsigned int rowIdx, unsigned int colIdx)
+void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
-    if(rowIdx >= matrix->rows || colIdx >= matrix->cols){
+    if(rowIdx >= matrix.rows || colIdx >= matrix.cols){
       return;
     }
-    matrix->data[rowIdx * matrix->cols + colIdx] = value;
+    matrix.buffer[rowIdx * matrix.cols + colIdx] = value;
 }
 
 MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
@@ -43,7 +43,7 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
       return 0;
       }
     MatrixType value;
-    value = matrix.data[rowIdx * matrix.cols + colIdx];
+    value = matrix.buffer[rowIdx * matrix.cols + colIdx];
     return value;
 }
 
@@ -51,7 +51,7 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
 {
     if (matrix1.rows != matrix2.rows || matrix1.cols != matrix2.cols) { // Matrixen können nur addiert werden, sofern sie jeweils die gleiche Anzahl Spalten und Zeilen haben
       Matrix errorMatrix = createMatrix(0, 0);
-      errorMatrix.data = NULL;
+      errorMatrix.buffer = NULL;
       return errorMatrix;
     }
 
@@ -59,7 +59,7 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
     for (unsigned int i = 0; i < matrix1.rows; i++) {
       for (unsigned int j = 0; j < matrix1.cols; j++) {
         MatrixType sum = getMatrixAt(matrix1, i, j) + getMatrixAt(matrix2, i, j);
-        setMatrixAt(sum, &result, i, j);
+        setMatrixAt(sum, result, i, j);
       }
     }
     return result;
@@ -70,7 +70,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
 {
     if (matrix1.cols != matrix2.rows){
       Matrix errorMatrix = createMatrix(0, 0);
-      errorMatrix.data = NULL;
+      errorMatrix.buffer = NULL;
       return errorMatrix;
       }
     Matrix matrix3 = createMatrix(matrix1.rows, matrix2.cols);
@@ -81,7 +81,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
         for(size_t k = 0; k < matrix1.cols; k++){
           sum += getMatrixAt(matrix1, i, k) * getMatrixAt(matrix2, k, j);
         }
-        setMatrixAt(sum, &matrix3, i, j);
+        setMatrixAt(sum, matrix3, i, j);
       }
     }