개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

exp(3m)

Mathematical Library Functions                                         exp(3M)



NAME
       exp, expf, expl - exponential function

SYNOPSIS
       c99 [ flag... ] file... -lm [ library... ]
       #include <math.h>

       double exp(double x);


       float expf(float x);


       long double expl(long double x);

DESCRIPTION
       These functions compute the base-e exponential of x.

RETURN VALUES
       Upon  successful  completion,  these  functions  return the exponential
       value of x.


       If the correct value would cause overflow, a  range  error  occurs  and
       exp(),  expf(),  and  expl() return HUGE_VAL, HUGE_VALF, and HUGE_VALL,
       respectively.


       If x is NaN, a NaN is returned.


       If x is ±0, 1 is returned.


       If x is +Inf, x is returned.


       For exceptional cases, matherr(3M) tabulates the values to be  returned
       by exp() as specified by SVID3 and XPG3. See standards(7).

ERRORS
       These functions will fail if:

       Range Error    The result overflows.

                      If    the   integer   expression   (math_errhandling   &
                      MATH_ERREXCEPT) is non-zero, the overflow floating-point
                      exception is raised.

                      The  exp()  function  sets errno to ERANGE if the result
                      overflows.


USAGE
       An application wanting to check for exceptions should  call  feclearex‐
       cept(FE_ALL_EXCEPT)  before  calling  these  functions.  On  return, if
       fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is
       non-zero,  an  exception  has been raised. An application should either
       examine the return value or check the floating point exception flags to
       detect exceptions.


       An application can also set errno to 0 before calling exp(). On return,
       if errno is non-zero, an error has  occurred.  The  expf()  and  expl()
       functions do not set errno.

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i)


       ATTRIBUTE  TYPEATTRIBUTE  VALUE _ Interface StabilityCommitted _ Avail‐
       abilitysystem/library/math  _  MT-LevelMT-Safe  _   StandardSee   stan‐
       dards(7).


SEE ALSO
       math.h(3HEAD), mp(3MP), feclearexcept(3M), fetestexcept(3M), isnan(3M),
       log(3M), matherr(3M), attributes(7), standards(7)



Solaris 11.4                     27 Sept 2016                          exp(3M)