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SCALBN(3)
SCALBN(3) FreeBSD Library Functions Manual SCALBN(3)

NAME

scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnladjust exponent

LIBRARY

Math Library (libm, -lm)

SYNOPSIS

#include < math.h>

double
scalbln( double x, long n);

float
scalblnf( float x, long n);

long double
scalblnl( long double x, long n);

double
scalbn( double x, int n);

float
scalbnf( float x, int n);

long double
scalbnl( long double x, int n);

DESCRIPTION

These routines return x∗(2** n) computed by exponent manipulation.

SEE ALSO

ieee(3), math(3)

STANDARDS

These routines conform to ISO/IEC 9899:1999 (“ISO C99”), and they implement the Scalb function recommended by IEEE Std 754-1985.

HISTORY

The scalbn() and scalbnf() functions appeared in 4.3BSD and FreeBSD 2.0, respectively. The scalbln() and scalblnf() functions first appeared in FreeBSD 5.3, and scalblnl() and scalbln() in FreeBSD 6.0.
March 4, 2005 FreeBSD