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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
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