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Author: John

Elementary Calculus: An Infinitesimal Approach

This is a calculus textbook at the college Freshman level based on Abraham Robinson’s infinitesimals. Robinson’s modern infinitesimal approach puts the intuitive ideas of the founders of the calculus on a mathematically sound footing, and is easier for beginners to understand than the more common approach via epsilon, delta definitions.

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19 Sites With Free Textbooks

This is a collection of free and open textbooks which by various parties and educational organizations from all over the world. Their objectives are plain and simple – to create an avenue and platform where all students can gain access to learning materials for free.

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9 Free Physics Ebooks / Textbooks

These free physics ebooks cover a wide range of topics including life sciences, non-traditional topics for scientists and engineers, introductory mechanics, conceptual physics and relativity. A long list of learning institutions utilize these ebooks, so rest assured the syllabus is right on the spot and definitely beneficial to those who’re into the world of physics.

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