diff --git a/matrix.c b/matrix.c
index ad00628..f9b7942 100644
--- a/matrix.c
+++ b/matrix.c
@@ -4,6 +4,10 @@
 
 // TODO Matrix-Funktionen implementieren
 
+typedef struct Matrix {
+
+} Matrix;
+
 Matrix createMatrix(unsigned int rows, unsigned int cols)
 {
     
diff --git a/todo.md b/todo.md
new file mode 100644
index 0000000..9ed941b
--- /dev/null
+++ b/todo.md
@@ -0,0 +1,19 @@
+## todo
+### Matrix
+- Struct Matrix
+    - Rows, Columns, Matrix [][]
+    - RowIndex, ColumnIndex Unsigned Int
+    - MatrixType
+- Storen von Matritzen (array an matritzen?)
+- Übergabe von Matrix.h
+#### Methoden
+- createMatrix
+- clearMatrix
+- setMatrixAt
+- getMatrixAt
+- add   --> Markus
+- multiply --> Markus
+### imageInput
+- To be discussed
+### neuronales Netz
+- to be discussed
\ No newline at end of file