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dhseqr examples
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Man Page Details
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Online html documentation available at 
           http://www.netlib.org/lapack/explore-html/ 

 Definition:
 ===========

     LOGICAL FUNCTION DISNAN( DIN )
 
     .. Scalar Arguments ..
     DOUBLE PRECISION   DIN
     ..
  

 Purpose:
 =============

 DISNAN returns .TRUE. if its argument is NaN, and .FALSE.
 otherwise.  To be replaced by the Fortran 2003 intrinsic in the
 future.


 Arguments:
 ==========

 [in] DIN
       DIN is DOUBLE PRECISION
       Input to test for NaN.

 Authors:
 ========

 Univ. of Tennessee 
 Univ. of California Berkeley 
 Univ. of Colorado Denver 
 NAG Ltd. 

 November 2011

