Learn FORTRAN with Real Code Examples

Install Fortran compiler (gfortran, Intel Fortran, PGI)

Verify compiler in terminal

Set PATH for environment

Write sample program (Hello World)

Compile and run program

Install Fortran compiler

Set PATH for compiler

Install libraries (BLAS, LAPACK, MPI)

Verify compilation

Run test programs

Makefile for builds

Module definition files

Compiler config flags

HPC batch scripts

Library dependencies (e.g., BLAS/LAPACK)

gfortran source.f90 -o executable

ifort source.f90 -o executable

mpif90 source.f90 -o executable

./executable

gdb ./executable

Support for UTF-8 strings in newer compilers

Locale-aware formatting for numbers

No GUI localization built-in

External visualization supports internationalization

Numeric precision consistent worldwide

Documentation via Fortran standards

Online tutorials & examples

HPC user forums

University courses

Code examples for legacy systems

Minimal - primarily console I/O

Visualization via external tools (Python, MATLAB, gnuplot)

Tk or GUI libraries possible but uncommon

Focus is numerical output

Plotting handled outside Fortran

Variables in memory

Arrays for temporary storage

Modules maintain global state

Parallel threads may have private/shared state

Use synchronization primitives in MPI/OpenMP

Arrays and matrices

Formatted and unformatted files

Structured derived types

External libraries for scientific data

Input/output streams