Here is an unordered list of online mathematics books, textbooks, monographs, lecture notes, and other mathematics related documents freely available on the web.
I tried to select only the works in book formats, "real" books that are mainly in PDF format, so many wellknown htmlbased mathematics web pages and online tutorials are left out.
Click here if you prefer a categorized directory of mathematics books. The list is updated on a daily basis, so, if you want to bookmark this page, use one of the buttons below.

Elementary Differential Equations
William F. Trench  Brooks Cole, Published in 2001, 663 pages

First Principles of Symmetrical Beauty
David Ramsay Hay  W. Blackwood and sons, Published in 1846, 305 pages

The Essential Elementary and Intermediate Algebra
Jon Blakely  JonBlakely.com, Published in 2016, 314 pages

Lie groups and Lie algebras
N. Reshetikhin, V. Serganova, R. Borcherds  UC Berkeley, Published in 2006, 179 pages

Statistics Review: Including a probability theory background
 Wikipedia, Published in 2014

Supplementary Algebra
Robert L. Short  D.C. Heath & Co., Published in 1905, 60 pages

Calculus and Linear Algebra. Vol. 2
Wilfred Kaplan, Donald J. Lewis  University of Michigan Library, Published in 2007, 606 pages

Surgical Methods in Rigidity
F.T. Farrell  Springer, Published in 1996, 108 pages

An Introduction to Partial Differential Equations
Per Kristen Jakobsen  arXiv.org, Published in 2019, 226 pages

Surgery on Compact Manifolds
C.T.C. Wall, A. A. Ranicki  American Mathematical Society, Published in 1999, 314 pages

Algebraic Tools for Modal Logic
Mai Gehrke, Yde Venema  ESSLLI, Published in 2001, 109 pages

Mathematics for the Physical Sciences
Leslie Copley  De Gruyter Open, Published in 2014, 446 pages

Manifolds of Differentiable Mappings
Peter W. Michor  Birkhauser, Published in 1980, 165 pages

A Minimum of Stochastics for Scientists
Noel Corngold  Caltech, Published in 2009, 77 pages

Dynamics in One Complex Variable
John Milnor  Princeton University Press, Published in 1991, 146 pages

Linear Mathematics In Infinite Dimensions
U. H. Gerlach  The Ohio State University, Published in 2015, 507 pages

Elementary Practical Mathematics
John Perry  The Macmillan Company, Published in 1913, 364 pages

Analytic Geometry
L. P. Siceloff, G. Wentworth, D. E. Smith  Ginn and Company, Published in 1922, 296 pages

Decision Making and Productivity Measurement
Dariush Khezrimotlagh  arXiv, Published in 2016, 214 pages

Differential Equations
William Woolsey Johnson  J. Wiley, Published in 1906, 96 pages

High School Algebra
J.T. Crawford  The Macmillan Company, Published in 1916, 428 pages

An Introduction to Modular Forms
Henri Cohen  arXiv.org, Published in 2018, 58 pages

Advances in Graph Algorithms
Ton Kloks, YueLi Wang  viXra.org, Published in 2013, 178 pages

Introduction to Characteritic Classes and Index Theory
JeanPierre Schneiders  Universidade de Lisboa, Published in 2000, 236 pages

The Handbook of Essential Mathematics
John C. Sparks  Air Force Publication, Published in 2006, 205 pages

Iterative Methods for Optimization
C.T. Kelley  Society for Industrial Mathematics, Published in 1987, 188 pages

Spectral Theory
Leif Mejlbro  BookBoon, Published in 2009, 80 pages

Mathematical Computation
Ian Craw  University of Aberdeen, Published in 2003, 156 pages

The First Six Books of the Elements of Euclid
John Casey, Euclid  Longmans, Green, and Co., Published in 1885, 233 pages

A Panoramic View of Riemannian Geometry
Marcel Berger  Springer, Published in 2002, 874 pages

Heegner Points and Rankin LSeries
Henri Darmon, ShouWu Zhang  Cambridge University Press, Published in 2004, 382 pages

On Some of Smarandache's Problems
Krassimir Atanassov  Erhus Univ Pr, Published in 1999, 89 pages

Combinatorial Theory
GianCarlo Rota  , Published in 1998, 414 pages

Ordinary Differential Equations and Dynamical Systems
Gerald Teschl  Universitaet Wien, Published in 2009, 297 pages

Probability for Finance
Patrick Roger  BookBoon, Published in 2010, 115 pages

Multivariable Calculus
Wong Yan Loi  National University of Singapore, Published in 2013, 105 pages

Projective Geometry
Nigel Hitchin  , Published in 2003

Elementary Fuzzy Matrix Theory and Fuzzy Models for Social Scientists
W. B. Vasantha Kandasamy, at al.  arXiv, Published in 2007, 352 pages

The Smarandache Function
C. Dumitrescu, V. Seleacu  Erhus University Press, Published in 1996, 137 pages

Practical Mathematics for Home Study
Claude Irwin Palmer  McGrawHill, Published in 1919, 528 pages

The Calculus
William V. Smith  Brigham Young University, Published in 2001, 144 pages

Lectures On Old And New Results On Algebraic Curves
P. Samuel  Tata Institute Of Fundamental Research, Published in 1966, 99 pages

Introduction to Numerical Methods and Matlab Programming for Engineers
Todd Young, Martin J. Mohlenkamp  Ohio University, Published in 2017, 182 pages

A Primer on Homotopy Colimits
Daniel Dugger  University of Oregon, Published in 2008, 72 pages

Partial Differential Equations: An Introduction
A.D.R. Choudary, Saima Parveen, Constantin Varsan  arXiv, Published in 2010, 208 pages

The Geometry of the Sphere
John C. Polking  Rice University, Published in 2000

Geometry and Billiards
Serge Tabachnikov  , Published in 1991, 186 pages

Substitutions in Dynamics, Arithmetics, and Combinatorics
Pierre Arnoux, et al.  Springer, Published in 2002, 419 pages

A First Course of Partial Differential Equations in Physical Sciences and Engineering
Marcel B. Finan  Arkansas Tech University, Published in 2009, 285 pages

Elementary Geometry: Practical and Theoretical
C. Godfrey, A. W. Siddons  Cambridge University Press, Published in 1919, 438 pages

Around the Boundary of Complex Dynamics
Roland K. W. Roeder  arXiv, Published in 2015, 56 pages

Linear Regression Using R: An Introduction to Data Modeling
David R. Lilja  University of Minnesota, Published in 2016, 91 pages

Complex Manifolds
Julius Ross  Stanford University, Published in 2014, 101 pages

Lectures on Differential Geometry
John Douglas Moore  University of California, Published in 2009, 263 pages

Topological Groups: Yesterday, Today, Tomorrow
Sidney A. Morris (ed.)  MDPI AG, Published in 2016, 230 pages

Basic Concepts in Modal Logic
Edward N. Zalta  Stanford University, Published in 2011, 91 pages

Geometry of Surfaces
Nigel Hitchin  , Published in 2004

Lectures on Fibre Bundles and Differential Geometry
J.L. Koszul  Tata Institute of Fundamental Research, Published in 1960, 105 pages

An Introduction to Contemporary Mathematics
John Hutchinson  Australian National University, Published in 2010, 295 pages

Calculus Made Easy
Silvanus P. Thompson  The MacMillan Company, Published in 1914, 315 pages

Intro to Abstract Algebra
Paul Garrett  , Published in 1998, 200 pages

Pictures of Julia and Mandelbrot Sets
 Wikibooks, Published in 2010

Spherical Harmonics in p Dimensions
Christopher Frye, Costas J. Efthimiou  arXiv, Published in 2012, 95 pages

Greek Geometry from Thales to Euclid
George Johnston Allman  Dublin University Press, Published in 1877, 248 pages

Galois Theory
Miles Reid  University of Warwick, Published in 2004, 89 pages

Essential Engineering Mathematics
Michael Batty  BookBoon, Published in 2011, 149 pages

An Introduction to Riemannian Geometry with Applications to Mechanics and Relativity
Leonor Godinho, Jose Natario  , Published in 2004, 272 pages

Mathematical Methods of Engineering Analysis
Erhan Cinlar, Robert J. Vanderbei  , Published in 2000, 119 pages

Introduction to Symplectic Field Theory
Y. Eliashberg, A. Givental, H. Hofer  arXiv, Published in 2000, 102 pages

Congruence Lattices of Finite Algebras
William DeMeo  arXiv, Published in 2012, 130 pages

Intersection Graphs: An Introduction
Madhumangal Pal  arXiv, Published in 2014, 49 pages

Learning Statistics with R
Daniel Navarro  University of Adelaide, Published in 2014, 564 pages

Think Stats: Probability and Statistics for Programmers
Allen B. Downey  Green Tea Press, Published in 2011, 122 pages

Multivariable and Vector Analysis
W W L Chen  Macquarie University, Published in 2008, 203 pages

Linear Algebra Examples C1: Linear equations, matrices and determinants
Leif Mejlbro  BookBoon, Published in 2009, 113 pages

Preparing for College Physics
David Murdock  TTU, Published in 2002, 64 pages

Basics of Algebra and Analysis For Computer Science
Jean Gallier  , Published in 2007, 254 pages

Lectures on Discrete and Polyhedral Geometry
Igor Pak  UCLA, Published in 2008, 428 pages

Games of No Chance 3
Michael H. Albert, Richard J. Nowakowski  Cambridge University Press, Published in 2009, 586 pages

A Gentle Introduction to the Art of Mathematics
Joseph Fields  Southern Connecticut State University, Published in 2009, 428 pages

Category Theory for Scientists
David I. Spivak  arXiv, Published in 2013, 261 pages

Advanced Algebra
Anthony W. Knapp  Birkhäuser, Published in 2016, 758 pages

Lectures on Quadratic Forms
C.L. Siegel  Tata Institute of Fundamental Research, Published in 1957, 170 pages

A Basic Course in Applied Mathematics
J. Bystrom, L. Persson, F. Stromberg  Lulea University of Technology, Published in 2010

Multivector Differential Calculus
Eckhard Hitzer  arXiv, Published in 2013, 43 pages

Notes on String Topology
Ralph L. Cohen, Alexander A. Voronov  arXiv, Published in 2005, 95 pages

Linear Algebra
David Cherney, Tom Denton, Andrew Waldron  UC Davis, Published in 2013, 410 pages

Mathematical Analysis I
Elias Zakon  The Trillia Group, Published in 2004, 367 pages

Basic Analysis Gently Done: Topological Vector Spaces
Ivan F. Wilde  King's College, London, Published in 2010, 129 pages

Calculus with Analytic Geometry
Richard H. Crowell, William E. Slesnick  W W Norton & Co Inc, Published in 2008, 662 pages

Introduction Probaility and Statistics
Muhammad ElTaha  University of Southern Maine, Published in 2003, 147 pages

Introduction to the Theory of Fourier's Series and Integrals
H. S. Carslaw  Macmillan and co., Published in 1921, 346 pages

Lectures on Topics In OneParameter Bifurcation Problems
P. Rabier  Tata Institute of Fundamental Research, Published in 1985, 238 pages

Discrete Dynamical Systems
Arild Wikan  Bookboon, Published in 2013, 254 pages

Set Theoretic Approach to Algebraic Structures in Mathematics
W. B. Vasantha Kandasamy, Florentin Smarandache  Educational Publisher, Published in 2013, 168 pages

NonUniform Random Variate Generation
Luc Devroye  Springer, Published in 1986, 843 pages

Ten Chapters of the Algebraical Art
Peter J. Cameron  Queen Mary, University of London, Published in 2007, 108 pages

Existence, multiplicity, perturbation, and concentration results for a class of quasilinear elliptic problems
Marco Squassina  Electronic Journal of Differential Equations, Published in 2006, 213 pages

Elementary Theory of Numbers
Waclaw Sierpinski  ICM, Published in 1964, 516 pages

Statistics for Health, Life and Social Sciences
Denis Anthony  BookBoon, Published in 2011, 292 pages

Dynamical Systems and Sheaves
D. I. Spivak, C. Vasilakopoulou, P. Schultz  arXiv, Published in 2016, 65 pages

Mathematical Physics II
Boris Dubrovin  SISSA, Published in 2008, 78 pages

Probability and Mathematical Statistics
Prasanna Sahoo  University of Louisville, Published in 2013, 712 pages

Lectures on Potential Theory
M. Brelot  Tata Institute of Fundamental Research, Published in 1967, 158 pages

Fredholm Operators and Spectral Flow
Nils Waterstraat  arXiv, Published in 2016, 61 pages

Lecture Notes on Differentiable Manifolds
Jie Wu  National University of Singapore, Published in 2004, 78 pages

A First Course in Elementary Differential Equations
Marcel B. Finan  Arkansas Tech University, Published in 2006, 213 pages

Complex Analysis
C. McMullen  Harvard University, Published in 2010, 106 pages

Introduction to Mathematical Analysis
B. Lafferriere, G. Lafferriere, N. Mau Nam  Portland State University Library, Published in 2015, 141 pages

Topics in Differential Geometry
Peter W. Michor  American Mathematical Society, Published in 2008, 429 pages

Combinatorics Through Guided Discovery
Kenneth P. Bogart  Dartmouth College, Published in 2004, 202 pages

Fundamentals of Practical Mathematics
George Wentworth  Ginn and Co., Published in 1922, 220 pages

The Foundations of Geometry
David Hilbert  Project Gutenberg, Published in 1902, 101 pages

StreetFighting Mathematics
Sanjoy Mahajan  The MIT Press, Published in 2010, 153 pages

Lectures on Singular Stochastic PDEs
M. Gubinelli, N. Perkowski  arXiv, Published in 2015, 67 pages

Frobenius Splittings and BModules
Wilberd van der Kallen  Springer, Published in 1993, 112 pages

Lectures on Elementary Probability
William G. Faris  University of Arizona, Published in 2002, 62 pages

Algebraic and Geometric Methods in Enumerative Combinatorics
Federico Ardila  arXiv, Published in 2014, 143 pages

An Invitation to Mathematics
Arnold Dresden  H. Holt and Company, Published in 1936, 453 pages

Topics in dynamics I: Flows
Edward Nelson  Princeton University Press, Published in 1969, 122 pages

Lectures on the History of Mathematics
G. Donald Allen  Texas A&M University, Published in 2003

How To Write Proofs
Larry W. Cusick  California State University, Fresno, Published in 2009

A First Course in Mathematics Concepts for Elementary School Teachers
Marcel B. Finan  Arkansas Tech University, Published in 2006, 452 pages

The Manual of Mathematical Magic
Peter McOwan  Queen Mary, University of London, Published in 2010, 96 pages

Think Bayes: Bayesian Statistics Made Simple
Allen B. Downey  Green Tea Press, Published in 2012, 77 pages

Linear Partial Differential Equations and Fourier Theory
Marcus Pivato  Cambridge University Press, Published in 2005, 619 pages

Categories, Types, and Structures
Andrea Asperti, Giuseppe Longo  MIT Press, Published in 1991, 300 pages

The Kbook: An introduction to algebraic Ktheory
Charles Weibel  Rutgers, Published in 2010

Lectures on Integrable Probability
Alexei Borodin, Vadim Gorin  arXiv, Published in 2012, 63 pages

Mathematics and Physics of Emerging Biomedical Imaging
National Research Council  National Academies Press, Published in 1996, 238 pages

Linear Algebra C2: Geometrical Vectors, Vector Spaces and Linear Maps
Leif Mejlbro  BookBoon, Published in 2009, 126 pages

A Gentle Introduction to Tensors
Boaz Porat  Technion, Published in 2010, 87 pages

Multivariate Statistics: Concepts, Models, and Applications
David W. Stockburger  Missouri State University, Published in 2001

An Introduction to the Smarandache Function
Charles Ashbacher  Erhus Univ Pr, Published in 1995, 62 pages

First Book in General Mathematics
Frank S. Pugh  P.P. Simmons, Published in 1917, 285 pages

Calculus: A Modern, Rigorous Approach
Horst R. Beyer  , Published in 2007, 805 pages

Ordinary Differential Equations
Wong Yan Loi  National University of Singapore, Published in 2013, 121 pages

Real Functions in One Variable: Calculus 1a
Leif Mejlbro  BookBoon, Published in 2006, 146 pages

Symplectic Reflection Algebras
Gwyn Bellamy  arXiv, Published in 2012, 64 pages

Complex Analysis
Christian Berg  Kobenhavns Universitet, Published in 2012, 192 pages

Symbolic Logic: A First Course
Gary Hardegree  McgrawHill College, Published in 1999, 468 pages

Notes on the course Algebraic Topology
Boris Botvinnik  University of Oregon, Published in 2010, 181 pages

Notes on Differential Geometry and Lie Groups
Jean Gallier  University of Pennsylvania, Published in 2010

Lectures on CalabiYau and Special Lagrangian Geometry
Dominic Joyce  arXiv, Published in 2002, 58 pages

CookBook Of Mathematics
Viatcheslav Vinogradov  CERGEEI, Published in 1999, 116 pages

18 Lectures on KTheory
Ioannis P. Zois  arXiv, Published in 2010, 137 pages

Notes on Measure and Integration
John Franks  arXiv, Published in 2009, 118 pages

Blast Into Math!
Julie Rowlett  BookBoon, Published in 2013, 215 pages

Several Complex Variables
Michael Schneider, YumTong Siu  Cambridge University Press, Published in 1999, 564 pages

Holomorphic Spaces
S. Axler, J. McCarthy, D. Sarason  Cambridge University Press, Published in 1998, 476 pages

Introductory Finite Difference Methods for PDEs
D. M. Causon, C. G. Mingham  BookBoon, Published in 2010, 144 pages

Analytic Geometry and Principles of Algebra
A. Ziwet, L.A. Hopkins, E.R. Hedrick  The Macmillan Company, Published in 1913, 398 pages

An Introduction to DModules
JeanPierre Schneiders  Universite de Liege, Published in 1991, 73 pages

Calculus Unlimited
Jerrold E. Marsden, A. Weinstein  BenjaminCummings Publishing Co., Published in 1981, 246 pages

Differentiable Manifolds
Nigel Hitchin  , Published in 2003

Integration and Differential Equations
R.S. Johnson  BookBoon, Published in 2012, 122 pages

Quadratic Forms and Their Applications
Andrew Ranicki, et al.  American Mathematical Society, Published in 2000, 314 pages

Introduction to Dynamical Systems: A Handson Approach with Maxima
Jaime E. Villate  , Published in 2006, 43 pages

Basic Category Theory
Jaap van Oosten  University of Utrecht, Published in 2007, 88 pages

Lectures on Fundamental Concepts of Algebra and Geometry
John Wesley Young  Macmillan and co., Published in 1917, 264 pages

Mathematical Statistics
Henry Lewis Rietz  Open Court Pub. Co, Published in 1927, 208 pages

An Introduction to Probability and Random Processes
GianCarlo Rota, Kenneth Baclawski  , Published in 1979, 467 pages

Everything Maths: Grade 11 Mathematics
Neels van der Westhuizen, et al.  Siyavula, Published in 2012, 238 pages

Statistics
 Wikibooks, Published in 2013, 236 pages

Discrete Structures
Vladlen Koltun  Stanford University, Published in 2008, 89 pages

An Introductory Single Variable Real Analysis
Marcel B. Finan  Arkansas Tech University, Published in 2009, 179 pages

Geometry with an Introduction to Cosmic Topology
Mike Hitchman  , Published in 2017, 177 pages

Analytic Combinatorics
Philippe Flajolet, Robert Sedgewick  Cambridge University Press, Published in 2008, 822 pages

OpenIntro Statistics
D.M. Diez, C.D. Barr, M. CetinkayaRundel  OpenIntro, Published in 2012, 426 pages

Funny Little Calculus Text
Robert Ghrist  University of Pennsylvania, Published in 2012, 46 pages

Temporal Networks
Petter Holme, Jari Saramäki  arXiv, Published in 2011, 25 pages

Commutative Algebra
Keerthi Madapusi  Harvard University, Published in 2007, 177 pages

Projective and Polar Spaces
Peter J. Cameron  Queen Mary College, Published in 1991, 147 pages

Seminar on Triples and Categorical Homology Theory
B. Eckmann  Springer, Published in 1969, 304 pages

Applied Finite Mathematics
Rupinder Sekhon  Connexions, Published in 2011, 347 pages

Noncommutative Rings
Michael Artin  , Published in 1999, 103 pages

Exterior Differential Systems
Robert L. Bryant, et al.  MSRI, Published in 1991, 406 pages

Nonstandard Analysis in Topology
Sergio Salbany, Todor Todorov  arXiv, Published in 2011, 48 pages

Tilings and Patterns
E O Harriss  Mathematicians.org.uk, Published in 2008, 43 pages

Graphical Calculus
Arthur Henry Barker  Longmans, Green, and Co., Published in 1896, 188 pages

A Practical Arithmetic
Frank Lincoln Stevens  C. Scribner's sons, Published in 1910, 404 pages

Lecture Notes on SeibergWitten Invariants
John Douglas Moore  Springer, Published in 2010, 130 pages

Elementary Topology
O. Ya. Viro, O. A. Ivanov, N. Yu. Netsvetaev, V. M. Kharlamov  American Mathematical Society, Published in 2008, 400 pages

Introductory Map Theory
Yanpei Liu  Kapa & Omega, Published in 2010, 503 pages

A First Course in Ordinary Differential Equations
Norbert Euler  Bookboon, Published in 2015, 232 pages

Partial Differential Equations of Mathematical Physics
William W. Symes  Rice University, Published in 2006, 105 pages

Mathematical Reasoning: Writing and Proof
Ted Sundstrom  Pearson Education, Inc., Published in 2013, 591 pages

Concepts and Applications of Inferential Statistics
Richard Lowry  , Published in 2008, 366 pages

Essays on the Theory of Numbers
Richard Dedekind  The Open Court Publishing, Published in 1901, 78 pages

Quantum Physics, Relativity, and Complex Spacetime
Gerald Kaiser  University of Massachusetts at Lowell, Published in 2003, 252 pages

The General Theory of Dirichlet's Series
G.H. Hardy, Marcel Riesz  Cambridge University Press, Published in 1915, 95 pages

Generic Polynomials: Constructive Aspects of the Inverse Galois Problem
C. U. Jensen, A. Ledet, N. Yui  Cambridge University Press, Published in 2002, 268 pages

Ten British Mathematicians
Alexander Macfarlane  , Published in 1916, 108 pages

Topics in Real and Functional Analysis
Gerald Teschl  Universitaet Wien, Published in 2016, 486 pages

Elementary Functions and Applications
Arthur Sullivan Gale, Charles William Watkeys  H. Holt & Co., Published in 1920, 459 pages

Complex Analysis for Mathematics and Engineering
John H. Mathews, Russell W. Howell  Jones & Bartlett Learning, Published in 2006, 633 pages

Vedic Mathematics
W. B. Kandasamy, F. Smarandache  Automaton, Published in 2006, 220 pages

Problems with and Without ... Problems!
Florentin Smarandache  viXra, Published in 2011, 136 pages

Topics in Random Matrix Theory
Terence Tao  , Published in 2011, 340 pages

Beyond partial differential equations: A course on linear and quasilinear abstract hyperbolic evolution equations
Horst R. Beyer  arXiv, Published in 2011, 275 pages

Notes on Diffy Qs: Differential Equations for Engineers
Jiří Lebl  Lulu.com, Published in 2017, 371 pages

The Elementary Properties of the Elliptic Functions
Alfred Cardew Dixon  Macmillan, Published in 1894, 164 pages

Nonlinear Partial Differential Equations of Elliptic Type
Vicentiu Radulescu  arXiv, Published in 2005, 114 pages

Nonstandard Analysis
J. Ponstein  , Published in 2002, 147 pages

Introduction to Categories and Categorical Logic
Samson Abramsky, Nikos Tzevelekos  arXiv, Published in 2011, 101 pages

Introduction to Partial Differential Equations
Valeriy Serov  University of Oulu, Published in 2011, 122 pages

Plane and Spherical Trigonometry in three parts
Henry Bedingfield Goodwin  Longmans, Green, and Co., Published in 1907, 296 pages

Lectures on Topics In The Theory of Infinite Groups
B.H. Neumann  Tata Institute of Fundamental Research, Published in 1960, 200 pages

An Introduction to Good Old Fashioned Model Theory
Harold Simmons  The University of Manchester, Published in 2004, 180 pages

Cusps of Gauss Mappings
Thomas Banchoff, Terence Gaffney, Clint McCrory  Pitman Advanced Pub. Program, Published in 1982, 88 pages

Numerical Stability
M.N. Spijker  Leiden University, Published in 1998, 71 pages

Fractional Graph Theory: A Rational Approach to the Theory of Graphs
Daniel Ullman, Edward Scheinerman  Wiley, Published in 2008, 167 pages

Elementary Abstract Algebra: Examples and Applications
Justin Hill, Chris Thron  Texas A&M University, Published in 2017, 785 pages

Functions Modeling Change: A Precalculus Course
Marcel B. Finan  Arkansas Tech University, Published in 2003, 239 pages

On Riemann's Theory of Algebraic Functions and their Integrals
Felix Klein  Macmillan and Bowes, Published in 1893, 128 pages

Topics in the Theory of Quadratic Residues
Steve Wright  arXiv, Published in 2014, 160 pages

Lectures on Numerical Methods in Bifurcation Problems
H.B. Keller  Tata Institute Of Fundamental Research, Published in 1986, 140 pages

Differential Calculus
Pierre Schapira  Université Paris VI, Published in 2011, 60 pages

Discrete Mathematics: An Open Introduction
Oscar Levin  University of Northern Colorado, Published in 2017, 345 pages

Current Developments in Algebraic Geometry
Lucia Caporaso, et al.  Cambridge University Press, Published in 2012, 438 pages

Abstract Algebra I
Marcel B. Finan  Arkansas Tech University, Published in 2004

Lectures on Deformations of Singularities
Michael Artin  Tata Institute of Fundamental Research, Published in 1976, 110 pages

Computations in Algebraic Geometry with Macaulay 2
D. Eisenbud, D. Grayson, M. Stillman, B. Sturmfels  Springer, Published in 2001, 343 pages

Geometric Exercises in Paper Folding
T. Sundara Row  The Open Court pub. co, Published in 1917, 176 pages

The Haskell Road to Logic, Maths and Programming
Kees Doets, Jan van Eijck  College Publications, Published in 2004, 449 pages

Algebraic Methods
F. Oggier  Nanyang Technological University, Published in 2010, 129 pages

Lectures on Topics In Finite Element Solution of Elliptic Problems
Bertrand Mercier  Tata Institute of Fundamental Research, Published in 1979, 177 pages

Probability Theory
Curtis T. McMullen  Harvard University, Published in 2011, 98 pages

Art Gallery Theorems and Algorithms
Joseph O'Rourke  Oxford University Press, Published in 1987, 296 pages

Essentials of Trigonometry with Applications
D.R. Curtiss, E.J. Moulton  D. C. Heath And Company, Published in 1942, 190 pages

Descriptive Set Theory
David Marker  University of Illinois at Chicago, Published in 2002, 105 pages

Perturbation Theory of Dynamical Systems
Nils Berglund  arXiv, Published in 2001, 111 pages

Stochastic Processes
David Nualart  Universitat de Barcelona, Published in 2003, 148 pages

Multiplication of Vectors and Structure of 3D Euclidean Space
Miroslav Josipovic  viXra, Published in 2016, 70 pages

An Algorithm for Constructing Lyapunov Functions
Sigurdur Freyr Hafstein  , Published in 2007, 100 pages

SemiRiemann Geometry and General Relativity
Shlomo Sternberg  , Published in 2003, 251 pages

Combinatorial Knot Theory
Louis H. Kauffman  University of Illinois at Chicago, Published in 2009, 159 pages

Commutative Algebra
 Wikibooks, Published in 2016, 204 pages

Uncertainty Theory
Baoding Liu  Tsinghua University, Published in 2018, 501 pages

Semiclassical analysis
Victor Guillemin, Shlomo Sternberg  Harvard University, Published in 2012, 488 pages

Lectures on Expansion Techniques In Algebraic Geometry
S.S. Abhyankar  Tata Institute Of Fundamental Research, Published in 1977, 169 pages

Theory and Applications of Finite Groups
G. A. Miller, H. F. Blichfeldt, L. E. Dickson  J. Wiley, Published in 1916, 424 pages

An Introduction to Higher Mathematics
Patrick Keef, David Guichard, Russ Gordon  Whitman College, Published in 2010, 144 pages

Stochastic Calculus
Alan Bain  , Published in 2008, 99 pages

Theory of Symmetry and Ornament
Slavik V. Jablan  Matematicki Institut, Published in 1995, 331 pages

Amusements in Mathematics
Henry Ernest Dudeney  Nelson, Published in 1917, 280 pages

Differential Geometry of Indefinite Complex Submanifolds in Indefinite Complex Space Forms
Alfonso Romero, Young Jin Suh  , Published in 2004, 60 pages

Introduction to Complex Analysis
W W L Chen  Macquarie University, Published in 2003, 194 pages

Discrete Differential Geometry: An Applied Introduction
M. Desbrun, P. Schroeder, M. Wardetzky  Columbia University, Published in 2008, 103 pages

Periodic Solutions for Evolution Equations
Mihai Bostan  American Mathematical Society, Published in 2002, 41 pages

Stats without Tears
Stan Brown  BrownMath.com, Published in 2016, 243 pages

An elementary treatise on Fourier's series and spherical, cylindrical, and ellipsoidal harmonics
William Elwood Byerly  Ginn and company, Published in 1893, 309 pages

Logic For Everyone
Robert A. Herrmann  , Published in 2006, 124 pages

Geometric Theorems and Arithmetic Functions
Jozsef Sandor  American Research Press, Published in 2002, 55 pages

The Chaos Hypertextbook
Glenn Elert  , Published in 2007

H2 Mathematics Textbook
Yan Min Choo  , Published in 2016, 1384 pages

One Variable Advanced Calculus
Kenneth Kuttler  Brigham Young University, Published in 2018, 327 pages

Hilbert Space Methods for Partial Differential Equations
R. E. Showalter  Pitman, Published in 1994, 208 pages

Introduction to Mathematical Logic: A problem solving course
Arnold W. Miller  arXiv, Published in 1996, 75 pages

Elementary Calculus
Frederick S Woods, Frederick H Bailey  Ginn and Company, Published in 1922, 323 pages

Lectures on Geodesics in Riemannian Geometry
M. Berger  Tata Institute of Fundamental Research, Published in 1965, 317 pages

Spectral Theory of Partial Differential Equations
Richard S. Laugesen  arXiv, Published in 2012, 120 pages

Principles of Data Analysis
Cappella Archive  Prasenjit Saha, Published in 2003, 113 pages

Trigonometry
Michael Corral  mecmath.net, Published in 2009, 174 pages

The Classification Theorem for Compact Surfaces
Jean Gallier, Dianna Xu  , Published in 2009, 134 pages

Jordan Operator Algebras
Harald HancheOlsen, Erling Størmer  Pitman, Published in 1984, 216 pages

Stability Analysis via Matrix Functions Method
A. A. Martynyuk  Bookboon, Published in 2013, 257 pages

Lectures on Torus Embeddings and Applications
Tadao Oda  Tata Institute of Fundamental Research, Published in 1978, 158 pages

Graduate Algebra
Leonard Evens  Northwestern University, Published in 1999, 160 pages

The Philosophy of Mathematics
Albert Taylor Bledsoe  J.B. Lippincott & Co, Published in 1868, 248 pages

Lectures on Exterior Differential Systems
M. Kuranishi  Tata Institute of Fundamental Research, Published in 1962, 117 pages

Classical Algebraic Geometry: A Modern View
Igor V. Dolgachev  Cambridge University Press, Published in 2012, 721 pages

Fundamentals of Model Theory
William Weiss, Cherie D'Mello  University of Toronto, Published in 1997, 64 pages

Lie Groups, Physics, and Geometry
Robert Gilmore  Drexel University, Published in 2007, 222 pages

An Introduction to Nonlinear Optimization Theory
Marius Durea, Radu Strugariu  De Gruyter Open, Published in 2014, 328 pages

Geometric Complexity Theory: An Introduction for Geometers
J.M. Landsberg  arXiv, Published in 2013, 38 pages

Examples of differential equations, with rules for their solution
George A. Osborne  Boston, Ginn & Company, Published in 1899, 76 pages

Chaos Theory
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W.P. Webber, L.C. Plant  John Wiley & sons, Published in 1919, 332 pages

Undergraduate Analysis Tools
Bruce K. Driver  University of California, San Diego, Published in 2013, 186 pages

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Applied Combinatorics
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Lie Groups in Physics
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Mathematical Biology
Jeffrey R. Chasnov  The Hong Kong University of Science & Technology, Published in 2010, 115 pages

Coalgebras and Modal Logic
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Riemannian Geometry: Definitions, Pictures, and Results
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Chebyshev and Fourier Spectral Methods
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Higher Operads, Higher Categories
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An Introduction to Riemannian Geometry
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An Introductory Course in Elementary Number Theory
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Riemannian Geometry
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Matrices
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Principles of Differential Geometry
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Philosophy and Fun of Algebra
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Linear Algebra: A Course for Physicists and Engineers
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Trigonometry for Beginners
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Linearization via the Lie Derivative
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The World of Mathematics
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Category Theory Lecture Notes
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Benjamin Yakir  The Hebrew University of Jerusalem, Published in 2011, 324 pages

Numerical Analysis for Engineering
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Notes on the Science of Logic
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Multivariable Calculus
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Abstract Algebra
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Some Fundamental Theorems in Mathematics
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W. B. V. Kandasamy, F. Smarandache  InfoLearnQuest, Published in 2008, 231 pages

Infinitedimensional Lie Algebras
Iain Gordon  University of Edinburgh, Published in 2009, 55 pages

Linear Programming
Jim Burke  University of Washington, Published in 2012

Elementary Linear Algebra
Kenneth Kuttler  The Saylor Foundation, Published in 2012, 433 pages

Multivariable Calculus: Applications and Theory
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Fractal Geometry
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Ergodic Optimization, Zero Temperature Limits and the Maxplus Algebra
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Special Set Linear Algebra and Special Set Fuzzy Linear Algebra
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An Introduction to High Dimensional Knots
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A Short History of Greek Mathematics
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Vector Calculus: Course
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Random Matrix Models and Their Applications
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Notes on Numerical Linear Algebra
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Complex Manifolds and Hermitian Differential Geometry
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Discrete Distributions
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Introduction to the Method of Multiple Scales
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Mathematical Methods for Physical Sciences II
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Topics in Algebraic Combinatorics
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The Algebra of Logic
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Noncommutative Algebraic Geometry
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Elementary Abstract Algebra
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Operator Algebras and Quantum Statistical Mechanics
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Groups Around Us
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Matrix Analysis and Algorithms
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Introduction to Homological Geometry
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Euclidean Plane and Its Relatives
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Mathematical Logic
Stephen G. Simpson  Pennsylvania State University, Published in 2013, 128 pages

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Elementary Computer Mathematics
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Euclid's 'Elements' Redux
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Measure Theory in NonSmooth Spaces
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