Fortran

Fortran is not dead; it drives global weather forecasting and computational physics (MPI). Fortran 2023 adds better C-interop and conditional expressions.

When to Use

• HPC: High Performance Computing on supercomputers.
• Legacy: 50 years of tested scientific libraries (LAPACK, BLAS).
• Arrays: Native multi-dimensional array slicing is superior to C.

Core Concepts

Modules

Modern encapsulation. USE my_module.

Coarrays

Native parallel programming syntax created for supercomputers.