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scalbln(3)

NAME

     scalbln, scalblnf, scalbn, scalbnf -- adjust exponent

LIBRARY

     Math Library (libm, -lm)

SYNOPSIS

     #include <math.h>

     double
     scalbln(double x, long n);

     float
     scalblnf(float x, long n);

     double
     scalbn(double x, int n);

     float
     scalbnf(float x, int n);

DESCRIPTION

     scalbln(), scalblnf(), scalbn(), and scalbnf() 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.

FreeBSD 5.4		       January 26, 2005 		   FreeBSD 5.4

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