Hi: Just a question: Are there FORTRAN compilers that allow REAL*16 calculations on a PC, or add-ins that permit this? I'm running a code which employs Newton-Raphson method on a geochemical problem, but it sometimes becomes ill-conditioned and fails to converge in part due to the limits of REAL*8 arithmetic. Are the new generation of PC processors able to deal with REAL*16 data?
REAL*4 = 32 bit Floating point REAL*8 = 64 bit Floating point REAL*16 = 128 bit Floating point Any thoughts? Mit freundlichem Glückauf! Dan ii Dan W. McCarn, AIPG CPG #10245, Wyoming PG #3031, EurGeol #462 Shell Exploration & Production Co., SURE; HOU-TSP 13155 777 Walker, Houston, TX 77002 Phone: 1(713)241-5726; Cell: 1(505)710-3600 E-Mail: [EMAIL PROTECTED] 10228 A Admiral Halsey NE; Albuquerque, NM 87111 Home: +1-505-822-1323; Cell: +1-505-710-3600 [EMAIL PROTECTED] The College of Santa Fe Department of Computer Science 4501 Indian School NE Ste. 100; Albuquerque, NM 87110 (505) 884-2732 fax (505) 262-5595 Institut für Geowissenschaften; Montanuniversität Leoben Peter-Tunner-Strasse 5; A8700 Leoben, AUSTRIA Cell: +43-676/725-6622; Fax; +43-3842-402-4902; Office: +43-3842-402-4903 [EMAIL PROTECTED] CONFIDENTIALITY NOTICE: The materials in this e-mail transmission (including all attachments) are private and confidential, and the property of the sender. The information contained in the materials is privileged and intended only for the use of the named addressee(s). If you are not the intended addressee, be advised that any unauthorized disclosure, copying, or distribution, or the taking of any action in reliance on the contents of this material is strictly prohibited. If you have received this e-mail transmission in error, please immediately notify the sender by sending an e- mail message, and thereafter destroy the e-mail you received and all copies thereof. Quoting Bill Wingle <[EMAIL PROTECTED]>: > Rajni Gaur, > > > I want to run a fortran based code for the variogram analysis. Could > > any one suggest me the free fortran compilers available on the > > internet ( indeed a good one too) and how to start with it. > > > > Thanks to all of you and i wish all a very "Merry Xmas". > > I've had good luck with gfortran. This is a free FORTRAN 95 compiler. > There are binaries for Windows, Linux, and MacOS. > > http://gcc.gnu.org/wiki/GFortran > http://gcc.gnu.org/fortran/ > > Regards, > > > Bill Wingle > > ------------------------------------------------------------------- > William L. Wingle, Ph.D. 5180 Pine Ridge Road > [EMAIL PROTECTED] Golden, Colorado 80403 > (303) 279-1290 http://www.uncert.com/wwingle/ > > > ---------------------------------------------------- Sent through the University of Leoben webmail system
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