Free Math Textbooks

By Xah Lee. Date: . Last updated: .

Calculus

APEX Calculus by Gregory Hartman et al

Calculus Volume 1. OpenStax project

Calculus, by Jim Fowler, Bart Snapp

Linear Algebra

Linear Algebra, by David Cherney and Others

Linear Algebra, by Jim Hefferon

Real Analysis

Real Analysis by Jiri Lebl 2016

Differential Geometry

Lecture Note on Curves and Surfaces, 2005, Chuu-Lian Terng

A Modern Course on Curves and Surfaces, 2003, by Richard S Palais

Functional Geometry, 2013, Sussman, Wisdom, Farr

Analysis on Manifolds, 1991, by J R Munkres

Topology

Intro to Point-Set Topology by Allen Hatcher

Topology from the Differential Point of View, 1965, John W Milnor



the following i have not verified.

Algebraic Geometry

ALGEBRAIC CURVES, An Introduction to Algebraic Geometry, by William Fulton


http://andromeda.rutgers.edu/~loftin/difffal03/manifold.pdf

http://web.stanford.edu/~jchw/WOMPtalk-Manifolds.pdf

http://webmath2.unito.it/paginepersonali/sergio.console/CurveSuperfici/AG24.pdf

xxDugundji__Topology_1966.djvu

Vassiliev__Introduction_to_Topology_2001.djvu

taste_of_topology_2005_runde.pdf

essential_topology_2005_crossley.pdf

Intro to Topology by Renzo

misc

Erlangen Program, Felix Klein