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.