diff --git a/include/complex.h b/include/complex.h
new file mode 100644
index 0000000..76207ac
--- /dev/null
+++ b/include/complex.h
@@ -0,0 +1,19 @@
+#ifndef _COMPLEX_H
+#define _COMPLEX_H
+
+#define complex _Complex
+#define _Complex_I (float _Imaginary) (1.0fi)
+#ifdef __STDC_IEC_559_COMPLEX__
+#define imaginary _Imaginary
+#define _Imaginary_I (float _Imaginary) (1.0fi)
+#endif
+
+#ifdef _Imaginary_I
+#define I _Imaginary_I
+#else
+#define I _Complex_I
+#endif
+
+
+
+#endif
\ No newline at end of file