The character string can be given within apostrophes so that you no longer have to count manually the number of characters in the character string. The statement END in the main program is also being used for the execution so that STOP is no longer required. Instead of an external function a local function is now used. The backward loop has not to be simulated. The specifications have a new appearance.
Structured layout is used always and all statement numbers have been removed.
The character string is given within apostrophes and the standard formats and standard units are used. The new language F has been developed as a possible replacement of Pascal at the teaching of programming, but at the same it is a pure subset of Fortran 90 and Fortran 95. A free F compiler for Linux is now available. Keywords are reserved words and are required to be lower case letters, other identifiers may be mixed. Functions and subroutines are only permitted via modules.