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title <cmath> | Microsoft Docs
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ms.date 11/04/2016
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ms.technology
cpp-standard-libraries
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ms.topic article
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std::<cmath>
<cmath>
std.<cmath>
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C++
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cmath header
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<cmath>

Includes the Standard C library header <math.h> and adds the associated names to the std namespace.

Syntax

#include <cmath>  
  

Remarks

Including this header ensures that the names declared using external linkage in the Standard C library header are declared in the std namespace.

See Also

Header Files Reference
C++ Standard Library Overview
Thread Safety in the C++ Standard Library