- initial import

git-svn-id: http://moon:8086/svn/mips@1 a8ebac50-d88d-4704-bea3-6648445a41b3

src/rad2deg.c

@@ -0,0 +1,39 @@
+/* +++Date last modified: 05-Jul-1997 */
+
+/*
+**  RAD2DEG.C - Functions to convert between radians and degrees
+*/
+
+#include <math.h>
+#include "snipmath.h"
+
+#undef rad2deg                /* These are macros defined in PI.H */
+#undef deg2rad
+
+double rad2deg(double rad)
+{
+      return (180.0 * rad / (PI));
+}
+
+double deg2rad(double deg)
+{
+      return (PI * deg / 180.0);
+}
+
+#ifdef TEST
+
+#include <stdio.h>
+
+main()
+{
+      double X;
+
+      for (X = 0.0; X <= 360.0; X += 45.0)
+            printf("%3.0f degrees = %.12f radians\n", X, deg2rad(X));
+      puts("");
+      for (X = 0.0; X <= (2 * PI + 1e-6); X += (PI / 6))
+            printf("%.12f radians = %3.0f degrees\n", X, rad2deg(X));
+      return 0;
+}
+
+#endif /* TEST */