Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages

CentOS 7.0 - man page for dlaisnan.f (centos section 3)

dlaisnan.f(3)				      LAPACK				    dlaisnan.f(3)

NAME
       dlaisnan.f -

SYNOPSIS
   Functions/Subroutines
       LOGICAL function dlaisnan (DIN1, DIN2)
	   DLAISNAN tests input for NaN by comparing two arguments for inequality.

Function/Subroutine Documentation
   LOGICAL function dlaisnan (double precisionDIN1, double precisionDIN2)
       DLAISNAN tests input for NaN by comparing two arguments for inequality.

       Purpose:

	    This routine is not for general use.  It exists solely to avoid
	    over-optimization in DISNAN.

	    DLAISNAN checks for NaNs by comparing its two arguments for
	    inequality.  NaN is the only floating-point value where NaN != NaN
	    returns .TRUE.  To check for NaNs, pass the same variable as both
	    arguments.

	    A compiler must assume that the two arguments are
	    not the same variable, and the test will not be optimized away.
	    Interprocedural or whole-program optimization may delete this
	    test.  The ISNAN functions will be replaced by the correct
	    Fortran 03 intrinsic once the intrinsic is widely available.

       Parameters:
	   DIN1

		     DIN1 is DOUBLE PRECISION

	   DIN2

		     DIN2 is DOUBLE PRECISION
		     Two numbers to compare for inequality.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Definition at line 75 of file dlaisnan.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2				 Tue Sep 25 2012			    dlaisnan.f(3)


All times are GMT -4. The time now is 09:42 AM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
UNIX.COM Login
Username:
Password:  
Show Password