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Michael Hartl

About

Michael Hartl is an American mathematician, physicist, and computer programmer who is known for his proposal to replace pi with tau.

Books

Ruby on Rails Tutorial
Ruby on Rails Tutorial
Michael Hartl
Ruby on rails 3 tutorial
Ruby on rails 3 tutorial
Michael Hartl
Learn Enough Developer Tools to Be Dangerous
Learn Enough Developer Tools to Be Dangerous
Michael Hartl
The Ruby on Rails Tutorial
The Ruby on Rails Tutorial
Michael Hartl
RailsSpace
RailsSpace
Michael Hartl, Aurelius Prochazka
Learn Enough Ruby to Be Dangerous
Learn Enough Ruby to Be Dangerous
Michael Hartl
Ruby on Rails Tutorial
Ruby on Rails Tutorial
Michael Hartl
RailsSpace
RailsSpace
Michael Hartl, Aurelius Prochazka
The Ruby on Rails 3 Tutorial and Reference Collection
The Ruby on Rails 3 Tutorial and Reference Collection
Michael Hartl, Obie Fernandez
The Ruby on Rails 3 Tutorial and Reference Collection (Collection)
The Ruby on Rails 3 Tutorial and Reference Collection (Collection)
Obed (Obie) Fernandez, Michael Hartl

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