diff --git a/src/matrix/3x3matrix.h b/src/matrix/3x3matrix.h
deleted file mode 100644
index 7b4dc346ce0ca43cf5db0e44d2c5516c50972072..0000000000000000000000000000000000000000
--- a/src/matrix/3x3matrix.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#ifndef _3X3MATRIX_H
-#define _3X3MATRIX_H
-#include <stdint.h>
-
-#define _mA a11
-#define _mB a12
-#define _mC a13
-#define _mD a21
-#define _mE a22
-#define _mF a23
-#define _mG a31
-#define _mH a32
-#define _mI a33
-
-typedef struct{
-    float a11,a12,a13,
-        a21,a22,a23,
-        a31,a32,a33;
-}_3x3Matrix;
-
-typedef struct{
-    float a11,
-        a21,
-        a31;
-}_3x1Matrix;
-
-_3x3Matrix add_3x3(_3x3Matrix m1, _3x3Matrix m2);
-_3x3Matrix minus_3x3(_3x3Matrix m1, _3x3Matrix m2);
-_3x3Matrix multiply_3x3(_3x3Matrix m1, _3x3Matrix m2);
-_3x3Matrix scale_3x3(_3x3Matrix m1, float scale);
-float det_3x3(_3x3Matrix m);
-_3x3Matrix inverse_3x3(_3x3Matrix m);
-_3x1Matrix add_3x1(_3x1Matrix m1, _3x1Matrix m2);
-_3x1Matrix minus_3x1(_3x1Matrix m1, _3x1Matrix m2);
-_3x3Matrix combine(_3x1Matrix m1, _3x1Matrix m2, _3x1Matrix m3);
-_3x1Matrix transpose_3x3(_3x3Matrix m1, _3x1Matrix m2);
-unsigned char equals_3x3(_3x3Matrix m1, _3x3Matrix m2);
-_3x1Matrix crossProduct(_3x1Matrix m1, _3x1Matrix m2);
-
-
-#endif //_3X3MATRIX_H
-