#include <math.h>
#include <errno.h>
-#define r1 -0.1666665668E+0
-#define r2 0.8333025139E-2
-#define r3 -0.1980741872E-3
-#define r4 0.2601903036E-5
+#define r1 (-0.1666665668E+0)
+#define r2 (0.8333025139E-2)
+#define r3 (-0.1980741872E-3)
+#define r4 (0.2601903036E-5)
/* PI=C1+C2 */
#define C1 3.140625