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Tutorial
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Step9
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MathFunctions
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MathFunctions.cxx
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#include
"MathFunctions.h"
#include
<cmath>
#ifdef
USE_MYMATH
# include "mysqrt.h"
#endif
namespace
mathfunctions
{
double
sqrt
(
double
x
)
{
#ifdef
USE_MYMATH
return
detail
::
mysqrt
(
x
);
#else
return
std
::
sqrt
(
x
);
#endif
}
}