Algorithms can be expressed in many kinds of notation, including natural languages, pseudocode, flowcharts, drakon-charts, programming languages or control tables(processed by interpreters)...

Pseudocode, flowcharts, drakon-charts and control tables are structured ways to express algorithms that avoid many of the ambiguities common in natural language statements. Programming languages are primarily intended for expressing algorithms in a form that can be executed by a computer, but are often used as a way to define or document algorithms...

DRAKON algorithm execution is animated by highlighting diagram elements in the running order

There is a wide variety of representations possible and one can express a given Turing machine program as a sequence of machine tables (see more at finite-state machine, state transition table and control table), as flowcharts and drakon-charts (see more at state diagram), or as a form of rudimentary machine code or assembly code called “sets of quadruples”...

Tags: al-Khwārizmī, Algerbra, algorithm, ancient, arabic, astronomy, Baghdad, Code, computer, drakon chart, euclid, flowchart, Herbrand, House of Wisdom, iran, logic, machine, Persia, physics, programing, science, the sieve of Eratosthenes, theory, turing