write fortran ''

Fortran (Formula Translation) is a programming language that is widely used for scientific and engineering applications. It was originally developed in the 1950s by IBM for scientific and engineering calculations. Fortran is a compiled language, meaning that the code is translated into machine language by a compiler before it can be executed.

Here is an example of a simple Fortran program that prints "Hello, World!" to the screen:

program hello
  print *, "Hello, World!"
end program hello

In this program, `print *` is used to print the string "Hello, World!" to the screen. The `*` is a placeholder for the output format, which in this case is the default format.

Fortran has evolved over the years, with the most recent version being Fortran 2018. It is still widely used in scientific and engineering applications, particularly in fields such as computational fluid dynamics, weather modeling, and nuclear engineering.