summaryrefslogtreecommitdiff
path: root/INSTALL/dlamchtst.f
blob: cca831f2314194ff6a7fa691e0d7063033554565 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
      PROGRAM DLAMCHTST
*
*  -- LAPACK test routine (version 3.2) --
*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
*     November 2006
*
* =====================================================================
*
*     .. Local Scalars ..
      DOUBLE PRECISION   BASE, EMAX, EMIN, EPS, PREC, RMAX, RMIN, RND,
     $                   SFMIN, T
*     ..
*     .. External Functions ..
      DOUBLE PRECISION   DLAMCH
      EXTERNAL           DLAMCH
*     ..
*     .. Executable Statements ..
*
      EPS   = DLAMCH( 'Epsilon' )
      SFMIN = DLAMCH( 'Safe minimum' )
      BASE  = DLAMCH( 'Base' )
      PREC  = DLAMCH( 'Precision' )
      T     = DLAMCH( 'Number of digits in mantissa' )
      RND   = DLAMCH( 'Rounding mode' )
      EMIN  = DLAMCH( 'Minimum exponent' )
      RMIN  = DLAMCH( 'Underflow threshold' )
      EMAX  = DLAMCH( 'Largest exponent' )
      RMAX  = DLAMCH( 'Overflow threshold' )
*
      WRITE( 6, * )' Epsilon                      = ', EPS
      WRITE( 6, * )' Safe minimum                 = ', SFMIN
      WRITE( 6, * )' Base                         = ', BASE
      WRITE( 6, * )' Precision                    = ', PREC
      WRITE( 6, * )' Number of digits in mantissa = ', T
      WRITE( 6, * )' Rounding mode                = ', RND
      WRITE( 6, * )' Minimum exponent             = ', EMIN
      WRITE( 6, * )' Underflow threshold          = ', RMIN
      WRITE( 6, * )' Largest exponent             = ', EMAX
      WRITE( 6, * )' Overflow threshold           = ', RMAX
      WRITE( 6, * )' Reciprocal of safe minimum   = ', 1 / SFMIN
*
      END