1 files changed, 7 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libm/tanh.c b/mdk-stage1/dietlibc/libm/tanh.c
new file mode 100644
index 000000000..21dc3d0c0
--- /dev/null
+++ b/mdk-stage1/dietlibc/libm/tanh.c
@@ -0,0 +1,7 @@
+#include <math.h>
+
+double  tanh ( double x )
+{
+    long double  y = exp (x + x);
+    return (y - 1.) / (y + 1.);
+}