accuracy and precision computing

From: GioX® (spamstop_at_email.it)
Date: 09/26/04

  • Next message: Louis Luangkesorn: "newbie: passing parameters to subroutine" 
    Date: Sun, 26 Sep 2004 14:28:35 +0200

    hi evrybody!
    I'm developing a program to analyzing radiation pattern of microstrip
    antennas using the moment methods.

    the same code it's been ported to Mathematica (Wolfram Research)

    running the 2 code I discover that there is some difference in the result
    now I'm debugging all the variable and I'm writing a program in VB to do
    that, cause the variable it's so much!

    now I wonder which compiler is more accurate, Fortran or Mathematica??

    in both code I'm using the max dimension for the real and complex variables
    (in fortran: Real(8) and Double Complex, right?)

    because if fortran it's more accurate than Mathematica I stop immediatly to
    check the billion variables!!!!

    thank to all!!
    bye from Rome!
    Marco

    ps
    the machine is a PC with windows2k
    I've read somewhere that the core of mathematica it's been written in C but
    I don't know how they have treated the accuracy of the number.

  • Next message: Louis Luangkesorn: "newbie: passing parameters to subroutine"

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