The first MATLAB compiler was developed by Stephen C. Johnson in the 1990s. 23 In 2000, MathWorks added a Fortran-based library for linear algebra in MATLAB 6, replacing the software's original LINPACK and EISPACK subroutines that were in C. 23 MATLAB's Parallel Computing Toolbox was released at the 2004 Supercomputing Conference.
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Learn about the new features of Fortran 90/95 and newer. Skip this step if you know that you'll only be writing/maintaining Fortran 77 code. Remember that Fortran 90 introduced the 'Free Form' source code, allowing code to be written without the spaces and without the 72 character limit. Precompiled binaries (executables) are available for Windows, Linux, Mac OS X, the old Mac OS (PPC), etc. Silverfrost FTN95 Personal Edition. Silverfrost FTN95 is a Fortran 95 compiler that supports Fortran 77, Fortran 90 and Fortran 95. The compiler generates 32-bit and 64-bit exectuables for Windows and the Microsoft.NET framework.

Fortran is one of the earliest imperative computer programming languages around. It is often used for scientificand numeric programs. This page lists free Fortran compilers for various operating systems. Note that the differentsoftware listed are compliant with different Fortran standards, eg, ANSI Fortran 77, Fortran 95, Fortran 2003,Fortran 2008, Fortran 2018, and so on, so be sure to get the appropriate one for your purpose. Some of them may alsocome complete with debuggers,editors and anintegrated development environment (IDE).

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Free Fortran Compilers and IDEs

Flang

Flang is the Fortran compiler front end of the LLVM project (which also includes other compilers, suchas a C/C++ compiler).The current version (as at the date this was written) implements Fortran 2003 (with some features fromFortran 2008), while the next version (currently foundhere) implements Fortran 2018.The link above leads to the source code for the compiler. Thedownloadable binaries (ie, executables)can be found here. Note that the binaries are for Linux (both x86-64 and OpenPOWER) only, although work ona Windows port has begun.

AOCC Fortran

The AMD Optimizing C/C++ Compiler Suite (or 'AOCC') includes an optimizing Fortran compiler that can generate code for32-bit and 64-bit Linux systems. It also comes with optimized libraries.

MinGW'S G77 (GNU Fortran)

This system comes with the GNU G77 Fortran compiler (among other things, including aC/C++ compiler), which you can use to generate Win32 executables fromF77 code. Like many systems based on the GNU tools, Mingw32 comes with complete with various programming tools,such as a program maintainence program (ie, make), text processing tools (sed, grep),lexical analyser generator (flex), parser generator (bison), etc.

Gfortran - the GNU Fortran Compiler

gfortran, part of the GNU Compiler Collection, is a free Fortran 95/2003/2008 compiler. Like all things from GNU, it comeswith source code. Precompiled binaries (executables) are available for Windows, Linux, Mac OS X, the old Mac OS (PPC), etc.

Silverfrost FTN95 Personal Edition

Silverfrost FTN95 is a Fortran 95 compiler that supports Fortran 77, Fortran 90 and Fortran 95. The compiler generates32-bit and 64-bit exectuables for Windows and the Microsoft .NET framework. It comes with CHECKMATE,a tool that lets programmers check the correctness of their code at runtime. Also included is Plato 3 (an IDE),full source level debugging, documentation and examples. You may only generate code for your personal use on yourhome computer, and all executables will display a banner on execution.

Open Source Watcom / OpenWatcom Fortran Compiler

The Watcom (now OpenWatcom) Fortran 77 compiler is now available free of charge, complete with source code.This compiler, which generates code for Win32, Windows 3.1 (Win16), OS/2, Netware, MSDOS(16 and 32 bit), etc, was a well-known compiler some years back (until Sybase terminated it).

G95

[Update (17 November 2020): their website does not seem to be working correctly, withonly a partial change log on the main page, and no links to the compiler or anything else. I'm not sure ifthis is just a temporary situation (eg, due to an error in their web server configuration, such as failing toinstall PHP, since there are fragments of PHP code on the page), or if the site has really gone.]
G95 is an open source Fortran 95 compiler. At the time this was written, most of the ISO Fortran 95 standardhas been implemented. Platforms supported include Linux(x86, Intel IA64, AMD x86_64), Windows, Macintosh OS X, FreeBSD,Sparc Solaris and HP-UX.

Oracle Developer Studio

The Oracle Developer Studio includes C, C++ and Fortran compilers for Linux (specifically the Red Hat and Oracledistributions) andSolaris. Based on information displayed on the download page at the date this entry was written, it looks like you canfreely use the compiler for developing commercial applications if you wish. (As with all software, you should of courseverify this yourself, since the situation sometimes changes over time.)

f2j - Fortran to Java Compiler

f2j translates Fortran 77 source code to Java class files. It is distributed under theGNU GPL and runs on Linux, SunOS/Solaris.

F2C - Fortran to C Translator

This is a well-known Fortran to C converter that comes with source code. The site alsoincludes pre-compiled binaries (executables) for MSDOS and Microsoft Windows, althoughthese are by no means the only systems supported - the compiler works on Unix systems likeBSD, Linux, etc. You have to compile the compiler yourself on those systems.Libraries containing the runtime support needed (together with the C source code)are also included. You need a C compiler to generatebinaries from your Fortran sources.

DJGPP GNU G77 (Fortran 77) for MSDOS

Fortran 90 Compiler Mac Download Software

This is a development system based on the well-known GNU compiler system that includes compilers for Fortran 77,C, C++, Objective C, etc.It generates 32 bit MSDOS executables that is Windows 95 long-filename-aware. It is a very complete system with IDEs,graphics libraries,lexical analyser generators (flex), parser generators (bison),text processing utilities (like grep, sed),a program maintainence utility (ie, make),a DOS extender, and so on. The compiler,utilities and libraries come with source code.

Fortran 90 Compiler Mac Download

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Free Fortran Compilers and IDEs

Fortran 90 Compiler Mac Download Software

Fortran 90 Compiler Mac Download