Recent content by kubota

  1. K

    What are the Values of Machine Constants in Excel/VBA?

    Thanks for your reply. I found one glimmer of hope in a statement in a (web) file named C Standard Library <float.h>: ... EPSILON: smallest number x such that 1.0 + x != 1.0 Using Excel, I obtained a figure of around 4.996E-15, which may well be the value for my point 1 above, ie...
  2. K

    What are the Values of Machine Constants in Excel/VBA?

    What are the Values of "Machine Constants" in Excel/VBA? The Fortran code for TOMS Algorithm 691 refers to five "machine constants" belonging to the host computing environment. Two of these are: 1. "The smallest relative spacing", given as "B ** (-T)", where B = base (say 10?), and T =...
  3. K

    Fortran What Is Actually Being Passed in a Fortran Sub Call?

    AlephZero, I'm most grateful for your detailed, clear response. I now understand what the code is doing. With my thanks.
  4. K

    Fortran What Is Actually Being Passed in a Fortran Sub Call?

    What Is Actually Being Passed in a Fortran Sub Call?? I'm trying to understand exactly what is being passed from a calling routine to a called routine in an older Fortran program. Perhaps if I could present a simple example to illustrate my dilemma: Say the calling routine includes this...
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