fortran

Fortran for scientific and numerical computing. Use for .f90 files.

7 stars

byG1Joshi

View on GitHub Installation ↓

Best use case

fortran is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Fortran for scientific and numerical computing. Use for .f90 files.

Teams using fortran should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

You only need a quick one-off answer and do not need a reusable workflow.
You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/fortran/SKILL.md --create-dirs "https://raw.githubusercontent.com/G1Joshi/Agent-Skills/main/skills/languages/fortran/SKILL.md"

Manual Installation

Download SKILL.md from GitHub
Place it in .claude/skills/fortran/SKILL.md inside your project
Restart your AI agent — it will auto-discover the skill

How fortran Compares

Feature / Agent	fortran	Standard Approach
Platform Support	Not specified	Limited / Varies
Context Awareness	High	Baseline
Installation Complexity	Unknown	N/A

Frequently Asked Questions

What does this skill do?

Fortran for scientific and numerical computing. Use for .f90 files.

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# 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.

### Implicit None

Always required to disable legacy variable typing.

## Best Practices (2025)

**Do**:

- **Use `fpm`**: The Fortran Package Manager (modern tooling!).
- **Use `iso_c_binding`**: To call Fortran from C/Python.
- **Use `do concurrent`**: To hint optimizations to the compiler.

**Don't**:

- **Don't use fixed form**: No `.f` (77). Use `.f90` (free form).

## References

- [Fortran Lang](https://fortran-lang.org/)