1 files changed, 7 insertions, 0 deletions
diff --git a/Help/guide/tutorial/Step3/MathFunctions/mysqrt.h b/Help/guide/tutorial/Step3/MathFunctions/mysqrt.h
new file mode 100644
index 0000000..593d41e
--- /dev/null
+++ b/Help/guide/tutorial/Step3/MathFunctions/mysqrt.h
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace mathfunctions {
+namespace detail {
+double mysqrt(double x);
+}
+}