The Friendship Algorithm
Big Bang Theory Episode
Chronology	Season 2, Episode 13
Airdate	January 19, 2009
Writer(s)	Bill Prady, Richard Rosenstock, Chuck Lorre & Steven Molaro
Teleplay	Chuck Lorre & Steven Molaro
Story	Bill Prady & Richard Rosenstock
Director	Mark Cendrowski
Episode Guide
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Season Guide
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The Friendship Algorithm is the thirteenth episode of the second season and the thirtieth episode overall of the CBS sitcom The Big Bang Theory. It aired on January 19th, 2009.

Contents 1 Plot Summary 2 Critics 3 Notes 4 Video 5 Comments

Plot SummaryEdit

Socially awkward, Sheldon develops a scientific procedure (the titular "Friendship Algorithm") for making friends. He needs to use an open science grid computer that is in Barry Kripke's office, but Leonard tells Sheldon that only Barry's friends can use it. After repeated rebuffs from Kripke, Sheldon go to a bookstore to research making friends. He finds a children's book on the subject and tries to make friends with a little girl whom he finds that he has things in common with. After inviting her to the zoo, he is hurried out by Leonard who notes that he is in direct view of a security camera. Sheldon then designs a flowchart for making friends. He goes rock climbing with Kripke, but faints halfway up when he sees how far he has come. Sheldon invites him over to his apartment, much to the disgust of everyone else. Raj is informed he is being replaced by Kripke as five friends would be too many to handle. Barry then tells Sheldon that there is a sign-up sheet for the computer and Barry has no control over it. Sheldon then dismisses Kripke as his friend and goes back to his other four friends: Leonard, Howard, Raj, and Penny.

CriticsEdit

"Those writers love Sheldon. He is the reason this show is on the map in many ways. At present he is also the reason it will never become more than it." - The TV Critic's Review

NotesEdit

Title reference: The algorithm created by Sheldon that he uses to make friends.

VideoEdit

Episodes | Season 2

The Bad Fish Paradigm • The Codpiece Topology • The Barbarian Sublimation • The Griffin Equivalency • The Euclid Alternative • The Cooper-Nowitzki Theorem • The Panty Piñata Polarization • The Lizard-Spock Expansion • The White Asparagus Triangulation • The Vartabedian Conundrum • The Bath Item Gift Hypothesis • The Killer Robot Instability • The Friendship Algorithm • The Financial Permeability • The Maternal Capacitance • The Cushion Saturation • The Terminator Decoupling • The Work Song Nanocluster • The Dead Hooker Juxtaposition • The Hofstadter Isotope • The Vegas Renormalization • The Classified Materials Turbulence • The Monopolar Expedition