noun
(countable) A collection of ordered steps that solve a mathematical problem. A precise step-by-step plan for a computational procedure that possibly begins with an input value and yields an output value in a finite number of steps.
(loosely) A flowchart illustrating a decision-making process for human users, especially health care professionals.
(uncountable, obsolete) Calculation with Arabic numerals; algorism.
(social media, metonymic) recommender systems and the curation of feeds