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-rw-r--r--src/include/my_math.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/my_math.h b/src/include/my_math.h
index 865f11c..72c6b99 100644
--- a/src/include/my_math.h
+++ b/src/include/my_math.h
@@ -1,4 +1,5 @@
#define PI 3.141592653589793238
+#define KAPPA 0.5522847493f
union v2
{