Module COPYSIGN in FDLIBM

• FDLIBM Information

• Components
  • Fullsource from NETLIB
  • Readme from NETLIB
  • Source from NETLIB

COPYSIGN

 
Copysign(x,y) returns a value with the magnitude of x and the sign of y. A portable C
implementation for machines that support IEEE 754 floating point arithmetic or
other standards such as SVID, X/OPEN, and POSIX/ANSI.
 
Classes  :  A3a . Standard precision real arithmetic
 
Type     : C subroutine in FDLIBM package.
Access   : Public domain. Portable.
Precision: Double.
 
Usage    : r = copysign(x,y)
 
Details  : Fullsource Readme Source
Sites    : (1) NETLIB
 

Implementation of COPYSIGN from FDLIBM on NETLIB

 
NETLIB:    Public access repository, The University of Tennessee at
           Knoxville and Bell Laboratories
 
Precision: Double.
 
You may access components from NETLIB outside GAMS as follows.
 
   Readme       : Anonymous FTP from ftp.netlib.org in fdlibm/readme
   Source       : Anonymous FTP from ftp.netlib.org in
                  fdlibm/s_copysign.c
   Fullsource   : World Wide Web at
                  http://www.netlib.org/fdlibm/s_copysign.c plus
                  dependencies