1 files changed, 7 insertions, 0 deletions
diff --git a/src/elementaryFunctions/acosh/sacoshs.c b/src/elementaryFunctions/acosh/sacoshs.c
index a9ef9811..d2a9ae53 100644
--- a/src/elementaryFunctions/acosh/sacoshs.c
+++ b/src/elementaryFunctions/acosh/sacoshs.c
@@ -13,6 +13,13 @@
 #include <math.h>
 #include "acosh.h"
 
+#ifdef _MSC_VER
+float acoshf (float x)
+{
+	return (float) log(x + sqrt(x * x - 1));
+}
+#endif
+
 float		sacoshs(float x) {
   return (acoshf(x));
 }