Mike Du wrote:
I am helping my 9th grader child to learn using Gfortran for computation
programming.
[...] But could not find any compiler to download. We are using Vista and
Window7.
There does not exist an official binary of the GCC. Having said that,
the MinGW project and the Cygwin project both offer GCC binaries. If you
don't know Cygwin (which provides a Unix-like environment under
Windows), you probably should install MinGW.
Besides the official Cygwin and MinGW builds, some individuals also
build more recent versions of GCC.
All those builds are linked from
http://gcc.gnu.org/wiki/GFortranBinaries
An overview about the new gfortran features in the different GCC
releases can be found at http://gcc.gnu.org/wiki/GFortran#news
(An IDE, which supports (g)fortran is Photran/Eclipse, cf.
http://www.eclipse.org/photran/)
Tobias