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-rw-r--r--Help/guide/tutorial/Complete/MathFunctions/MathFunctions.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/Help/guide/tutorial/Complete/MathFunctions/MathFunctions.cxx b/Help/guide/tutorial/Complete/MathFunctions/MathFunctions.cxx
index 0145300629..c0991b9b98 100644
--- a/Help/guide/tutorial/Complete/MathFunctions/MathFunctions.cxx
+++ b/Help/guide/tutorial/Complete/MathFunctions/MathFunctions.cxx
@@ -10,6 +10,7 @@
namespace mathfunctions {
double sqrt(double x)
{
+// which square root function should we use?
#ifdef USE_MYMATH
return detail::mysqrt(x);
#else