<cmath>

Include the standard header <cmath> to effectively include the standard header <math.h> within the std namespace.

#include <math.h>

namespace std {
using ::abs; using ::acos; using ::asin;
using ::atan; using ::atan2; using ::ceil;
using ::cos; using ::cosh; using ::exp;
using ::fabs; using ::floor; using ::fmod;
using ::frexp; using ::ldexp; using ::log;
using ::log10; using ::modf; using ::pow;
using ::sin; using ::sinh; using ::sqrt;
using ::tan; using ::tanh;

using ::acosf; using ::asinf;
using ::atanf; using ::atan2f; using ::ceilf;
using ::cosf; using ::coshf; using ::expf;
using ::fabsf; using ::floorf; using ::fmodf;
using ::frexpf; using ::ldexpf; using ::logf;
using ::log10f; using ::modff; using ::powf;
using ::sinf; using ::sinhf; using ::sqrtf;
using ::tanf; using ::tanhf;

using ::acosl; using ::asinl;
using ::atanl; using ::atan2l; using ::ceill;
using ::cosl; using ::coshl; using ::expl;
using ::fabsl; using ::floorl; using ::fmodl;
using ::frexpl; using ::ldexpl; using ::logl;
using ::log10l; using ::modfl; using ::powl;
using ::sinl; using ::sinhl; using ::sqrtl;
using ::tanl; using ::tanhl;
}

Note: The Standard C++ library works in conjunction with the headers from the Standard C library. For information about the Standard C library, refer to the documentation that is supplied with the operating system.

Copyright note

Certain materials included or referred to in this document are copyright P.J. Plauger and/or Dinkumware, Ltd. or are based on materials that are copyright P.J. Plauger and/or Dinkumware, Ltd.

Notwithstanding the meta-data for this document, copyright information for this document is as follows: