Fortran · Introductory

Lesson 1 · On the house

Hello Fortran

program blocks, print *, comments with !, and compiling with gfortran.

Lesson 2

Variables and implicit none

Declaring integer, real, logical, character; implicit none and why it matters.

Lesson 3

Arithmetic and intrinsics

Integer vs real division, ** power, mixed-mode, and intrinsic math functions.

Lesson 4

if and select case

if/else if/else blocks, relational operators, and select case ranges.

Lesson 5

do loops

Counted do loops with steps, do while, exit and cycle.

Lesson 6

Arrays

Declaring arrays, 1-based indexing, constructors, and whole-array operations.

Lesson 7

Functions and subroutines

function results, subroutine with call, contains, and intent arguments.

Lesson 8

Character strings

Fixed-length strings, trim, // concatenation, len, and substrings.

Lesson 9

Formatted output

Format descriptors i, f, es, a, x, repeat counts, and write(*, fmt).

Lesson 10

Modules

module, use, contains, sharing data and procedures between files.