Learn Fortran - 10 Code Examples & CST Typing Practice Test
Fortran (Formula Translation) is a high-level, compiled programming language designed for numeric computation, scientific computing, and engineering applications. Known for its efficiency in numerical calculations, Fortran has been a standard in scientific computing for over 60 years.
Learn FORTRAN with Real Code Examples
Updated Nov 20, 2025
Explain
Fortran excels at high-performance numerical computation and array processing.
It supports modular programming, procedures, and modern object-oriented features in newer standards.
Commonly used in scientific simulations, weather modeling, computational physics, and engineering calculations.
Core Features
Modules and subroutines
Array operations and intrinsic functions
Derived data types
Control structures (loops, conditionals)
I/O facilities for formatted/unformatted data
Basic Concepts Overview
Variables, constants, and types
Control structures (if, do, select case)
Subroutines and functions
Modules and derived types
Arrays and intrinsic operations
Project Structure
source.f90 files
modules/
libraries/
tests/
executables/
Building Workflow
Write .f90 or .f95 source file
Compile with Fortran compiler
Link libraries if needed
Run executable
Debug using gdb or compiler flags
Difficulty Use Cases
Beginner: simple arithmetic & loops
Intermediate: subroutines and modules
Advanced: parallel programming & large-scale simulations
Expert: HPC code optimization, legacy code maintenance
Comparisons
Faster than interpreted languages for numeric computation
Better array handling than C in some cases
Less general-purpose than Python or Java
Strong legacy presence in HPC vs newer languages
Syntax can be verbose compared to modern languages
Versioning Timeline
1957 - Fortran I released
1960 - Fortran II
1978 - Fortran 77 standard
1990 - Fortran 90 (modern features)
2003-2025 - Fortran 2003, 2008, 2018 standards for OOP and parallelism
Glossary
Module: container for functions/subroutines
Subroutine: procedure with no return value
Function: procedure returning value
Intrinsic function: built-in Fortran function
Array: collection of same-type elements
Frequently Asked Questions about Fortran
What is Fortran?
Fortran (Formula Translation) is a high-level, compiled programming language designed for numeric computation, scientific computing, and engineering applications. Known for its efficiency in numerical calculations, Fortran has been a standard in scientific computing for over 60 years.
What are the primary use cases for Fortran?
Scientific simulations. Numerical and matrix computations. High-performance computing. Weather & climate modeling. Finite element analysis. Computational physics & chemistry
What are the strengths of Fortran?
High computational performance. Mature ecosystem in scientific computing. Efficient memory and vectorized operations. Widely supported in HPC systems. Legacy codebases in critical scientific domains
What are the limitations of Fortran?
Primarily numerical, not general-purpose. Older syntax can be verbose. Limited libraries for modern tasks outside science. Cross-platform GUIs are weak. Complex parallel programming setup
How can I practice Fortran typing speed?
CodeSpeedTest offers 10+ real Fortran code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.