Matheion: Learn to Program

Matheion is self-study for computer science — structured lessons you can work through on your own, without a live instructor. Every module follows the same rhythm: • Concepts — clear explanations written for solo reading • Examples — worked code with syntax highlighting • Practice — questions with reveal answers when you are ready • Quiz — multiple-choice check with instant feedback and a saved best score This release includes five courses: • Introductory Python (MA-PY1) — 16 guided modules from expressions and control flow through functions, sequences, strings and files, collections, classes, exceptions, modules, iterators and generators, type hints, inheritance, and decorators. • Java foundations (MA-JAVA0) — guided sessions from getting started on the JVM through arrays, classes and encapsulation, collections, exceptions, file I/O, inheritance, generics, lambdas, strings, enums, and concurrency. • SQL — from queries to database design (MA-SQL1) — 12 guided sessions on one bookshop schema: the relational model, SELECT, aggregation, joins, subqueries and CTEs, set operations, window functions, data changes with transactions, and schema design. • Intro to Web — HTML and CSS (MA-WEB1) — 16 guided sessions that build a small café website page by page: HTML structure, semantic markup, links and media, forms, CSS selectors, the box model, layout, and responsive polish. • Command line and file management (MA-CLI1) — 13 guided modules on a POSIX-style terminal: paths and directories, text files, copy/move/delete, permissions, redirection, pipes and grep, find, environment and PATH, processes, archives, and shell scripting basics. Study on iPhone or iPad. All lesson content is included in the app — no account required, no subscription, no in-app purchases. Works offline after install. More computer science tracks are planned for future updates.