TESTING/EIG/dsxt1.f(3)     Library Functions Manual     TESTING/EIG/dsxt1.f(3)

NAME
       TESTING/EIG/dsxt1.f

SYNOPSIS
   Functions/Subroutines
       double precision function dsxt1 (ijob, d1, n1, d2, n2, abstol, ulp,
           unfl)
           DSXT1

Function/Subroutine Documentation
   double precision function dsxt1 (integer ijob, double precision, dimension(
       * ) d1, integer n1, double precision, dimension( * ) d2, integer n2,
       double precision abstol, double precision ulp, double precision unfl)
       DSXT1

       Purpose:


            DSXT1  computes the difference between a set of eigenvalues.
            The result is returned as the function value.

            IJOB = 1:   Computes   max { min | D1(i)-D2(j) | }
                                    i     j

            IJOB = 2:   Computes   max { min | D1(i)-D2(j) | /
                                    i     j
                                         ( ABSTOL + |D1(i)|*ULP ) }

       Parameters
           IJOB

                     IJOB is INTEGER
                     Specifies the type of tests to be performed.  (See above.)

           D1

                     D1 is DOUBLE PRECISION array, dimension (N1)
                     The first array.  D1 should be in increasing order, i.e.,
                     D1(j) <= D1(j+1).

           N1

                     N1 is INTEGER
                     The length of D1.

           D2

                     D2 is DOUBLE PRECISION array, dimension (N2)
                     The second array.  D2 should be in increasing order, i.e.,
                     D2(j) <= D2(j+1).

           N2

                     N2 is INTEGER
                     The length of D2.

           ABSTOL

                     ABSTOL is DOUBLE PRECISION
                     The absolute tolerance, used as a measure of the error.

           ULP

                     ULP is DOUBLE PRECISION
                     Machine precision.

           UNFL

                     UNFL is DOUBLE PRECISION
                     The smallest positive number whose reciprocal does not
                     overflow.

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 104 of file dsxt1.f.

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

LAPACK                          Version 3.12.0          TESTING/EIG/dsxt1.f(3)