scalbn(3) BSD Library Functions Manual scalbn(3)
NAME
scalbn, scalbln
SYNOPSIS
#include <math.h>
double
scalbn(double x, int n);
long double
scalbnl(long double x, int n);
float
scalbnf(float x, int n);
double
scalbln(double x, long int n);
long double
scalblnl(long double x, long int n);
float
scalblnf(float x, long int n);
DESCRIPTION
The scalbn() , and scalbln() functions return x*(2**n) computed by expo-
nent manipulation.
SPECIAL VALUES
scalbn(+-0, n) returns +-0.
scalbn(x, 0) returns x.
scalbn(+-infinity, n) returns +-infinity.
scalbln() has the same special values.
NOTE
The scalb() function is deprecated. scalbn() should be used instead.
SEE ALSO
math(3), ldexp(3)
STANDARDS
The scalbn() and scalbln() functions conform to ISO/IEC 9899:1999(E).
BSD July 02, 2008 BSD
Mac OS X 10.6 - Generated Thu Sep 17 20:22:43 CDT 2009