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-rw-r--r--src/math/M_2_SQRTPI.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/math/M_2_SQRTPI.h b/src/math/M_2_SQRTPI.h
new file mode 100644
index 00000000..f8d102b5
--- /dev/null
+++ b/src/math/M_2_SQRTPI.h
@@ -0,0 +1,5 @@
+#include <math.h>
+#define M_2_SQRTPI 2.0/sqrt(3.14159)
+/*
+XOPEN(4)
+*/