scalb(3) [freebsd man page]

IEEE_TEST(3)						   BSD Library Functions Manual 					      IEEE_TEST(3)

NAME

     scalb, scalbf, significand, significandf -- IEEE test functions

LIBRARY

     Math Library (libm, -lm)

SYNOPSIS

     #include <math.h>

     double
     scalb(double x, double n);

     float
     scalbf(float x, float n);

     double
     significand(double x);

     float
     significandf(float x);

DESCRIPTION

     These functions allow users to test conformance to IEEE Std 754-1985.  Their use is not otherwise recommended.

     scalb(x, n) and scalbf(x, n) return x*(2**n) computed by exponent manipulation.  If n is not an integer, +-infinity, or an NaN, the result is
     unspecified.

     significand(x) and significandf(x) return sig, where x := sig * 2**n with 1 <= sig < 2.  significand(x) and significandf(x) are not defined
     when x is 0, +-infinity, or NaN.

SEE ALSO

     ieee(3), math(3)

STANDARDS

     IEEE Std 754-1985

BSD
								 November 6, 2005							       BSD

significand(3M) 					  Mathematical Library Functions					   significand(3M)

NAME

       significand, significandf, significandl - significand function

SYNOPSIS

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

       double significand(double x);

       float significandf(float x);

       long double significandl(long double x);

DESCRIPTION

       If x equals sig * 2^n with 1<= sig < 2, then these functions return sig.

RETURN VALUES

       Upon successful completion, these functions return sig.

       If x is either 0, +-Inf or NaN, x is returned.

ERRORS

       No errors are defined.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Stable			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       logb(3M), scalb(3M), attributes(5)

SunOS 5.11							    12 Jul 2006 						   significand(3M)