Fortran · Easy

Lesson 1 · On the house

Kinds and precision

real64 from iso_fortran_env, kind suffixes on literals, and precision traps.

Lesson 2

Array intrinsics and where

sum, product, maxval, count, any, all, masks, and the where construct.

Lesson 3

Allocatable arrays

allocatable, allocate with stat, automatic reallocation, and deallocate.

Lesson 4

Multidimensional arrays

Column-major order, reshape, matmul, transpose, and loop order.

Lesson 5

Derived types

type ... end type, components, constructors, arrays of types, and printing.

Lesson 6

pure and elemental procedures

pure guarantees, elemental functions applied to whole arrays, and side effects.

Lesson 7

File input and output

open with newunit, write and read, iostat, and close.

Lesson 8

Optional and keyword arguments

optional arguments, present(), keyword calls, and default handling.

Lesson 9

Character processing

Character-by-character loops, achar/iachar, case conversion, and internal I/O.

Lesson 10

do concurrent

Declaring independent iterations, locality specifiers, and when it parallelizes.