Free Mathematics Books

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 well-known html-based 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.

1. Smarandache Rings
   W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 222 pages
2. Ordinary Differential Equations
   Stephen Wiggins | University of Bristol, Published in 2017, 146 pages
3. Multiplication of Vectors and Structure of 3D Euclidean Space
   Miroslav Josipovic | viXra, Published in 2016, 70 pages
4. Rational Amusement for Winter Evenings
   John Jackson | Longman, Published in 1821, 138 pages
5. Mathematics for the Practical Man
   George Howe | Van Nostrand, Published in 1918, 221 pages
6. Functional Analysis
   Alexander C. R. Belton | Lancaster University, Published in 2006, 127 pages
7. Lectures on Stochastic Analysis
   Thomas G. Kurtz | University of Wisconsin, Published in 2007, 119 pages
8. Algorithmic Mathematics
   Leonard Soicher, Franco Vivaldi | Queen Mary University of London, Published in 2004, 94 pages
9. Essentials of Trigonometry with Applications
   D.R. Curtiss, E.J. Moulton | D. C. Heath And Company, Published in 1942, 190 pages
10. Preparing for College Physics
    David Murdock | TTU, Published in 2002, 64 pages
11. Seven Sketches in Compositionality: An Invitation to Applied Category Theory
    Brendan Fong, David I Spivak | arXiv.org, Published in 2018, 243 pages
12. Mathematics and Physical Science in Classical Antiquity
    J. L. Heiberg | Oxford University Press, Published in 1922, 115 pages
13. Quantitative Analysis: Algebra with a Business Perspective
    Donna M. Wacha | Bookboon, Published in 2013, 303 pages
14. Topology Without Tears
    Sidney A. Morris | , Published in 2007, 373 pages
15. Linear Algebra
    Jim Hefferon | Saint Michael's College, Published in 2017, 507 pages
16. Mathematical Recreations and Essays
    W. W. Rouse Ball | Macmillan, Published in 1914, 506 pages
17. Reform Calculus
    Marcel B. Finan | Arkansas Tech University, Published in 2004, 253 pages
18. Armstrong Calculus
    Jared Schlieper, Michael Tiemeyer | GALILEO, University System of Georgia, Published in 2015, 110 pages
19. Famous Problems of Elementary Geometry
    Felix Klein | Ginn and Co., Published in 1897, 108 pages
20. Optimization Algorithms: Methods and Applications
    Ozgur Baskan (ed.) | InTech, Published in 2016, 322 pages
21. Lectures on Topics In Finite Element Solution of Elliptic Problems
    Bertrand Mercier | Tata Institute of Fundamental Research, Published in 1979, 177 pages
22. Random Matrix Theory, Interacting Particle Systems and Integrable Systems
    Percy Deift, Peter Forrester (eds) | Cambridge University Press, Published in 2014, 528 pages
23. Combinatorial Maps: Tutorial
    Dainis Zeps | Latvian University, Published in 2007, 61 pages
24. Cribbage: A Strategy Guide for Beginners
    Jake Magnum | Smashwords, Published in 2016, 122 pages
25. Differential Equations with YouTube Examples
    Jeffrey R. Chasnov | BookBoon, Published in 2014, 57 pages
26. Topics in topology: The signature theorem and some of its applications
    Liviu I. Nicolaescu | University of Notre Dame, Published in 2008, 159 pages
27. Transformations of Surfaces
    Luther Pfahler Eisenhart | Princeton University Press, Published in 1923, 371 pages
28. Notes on the Theory of Algebraic Numbers
    Steve Wright | arXiv, Published in 2015, 127 pages
29. On Advanced Analytic Number Theory
    C.L. Siegel | Tata Institute of Fundamental Research, Published in 1961, 241 pages
30. Numerical Analysis I
    Mark Embree | Rice University, Published in 2012, 207 pages
31. An Introduction to Gaussian Geometry
    Sigmundur Gudmundsson | Lund University, Published in 2009, 75 pages
32. Numerical Methods For Time Dependent Equations
    P. Lascaux | Tata Institute of Fundamental Research, Published in 1976, 162 pages
33. Introduction to Differential Geometry and General Relativity
    Stefan Waner | , Published in 2005, 138 pages
34. Recreations in Mathematics
    H E. Licks | D. Van Nostrand Company, Published in 1917, 163 pages
35. A Feel for Statistics
    Ivan Lowe | scientificlanguage.com, Published in 2016, 121 pages
36. A Spiral Workbook for Discrete Mathematics
    Harris Kwong | Open SUNY Textbooks, Published in 2015, 307 pages
37. The Geometry of Iterated Loop Spaces
    J. P. May | Springer, Published in 1972, 175 pages
38. An Introduction to Microlocal Analysis
    Richard B. Melrose, Gunther Uhlmann | MIT, Published in 2008, 182 pages
39. Tensor Calculus
    Taha Sochi | viXra, Published in 2016, 91 pages
40. Some Fundamental Theorems in Mathematics
    Oliver Knill | arXiv.org, Published in 2018, 133 pages
41. Mathematical Philosophy: A Study of Fate and Freedom
    Cassius Jackson Keyser | E.P. Dutton & company, Published in 1922, 490 pages
42. Complex Analysis
    George Cain | , Published in 2001
43. The Fourth Dimension
    Charles Howard Hinton | S. Sonnenschein & Co., Published in 1906, 288 pages
44. Medians and Means in Riemannian Geometry: Existence, Uniqueness and Computation
    M. Arnaudon, F. Barbaresco, L. Yang | arXiv, Published in 2011, 48 pages
45. A Quick Review of Commutative Algebra
    Sudhir R. Ghorpade | Indian Institute of Technology, Bombay, Published in 2000, 13 pages
46. High-dimensional Knot Theory
    Andrew Ranicki | Springer, Published in 1998, 693 pages
47. Advanced Algebra
    Herbert E. Hawkes | Ginn and Company, Published in 1905, 314 pages
48. First Steps Towards a Symplectic Dynamics
    Barney Bramham, Helmut Hofer | arXiv, Published in 2011, 60 pages
49. Mirror Symmetry
    Cumrun Vafa, Eric Zaslow | American Mathematical Society, Published in 2003, 950 pages
50. Mathematical Methods for Physical Sciences II
    Christoph Kirsch | University of North Carolina, Published in 2011, 209 pages
51. Lectures on Symplectic Geometry
    Ana Cannas da Silva | Springer, Published in 2006, 225 pages
52. Calculus
    | Wikibooks, Published in 2011, 456 pages
53. Inside Out: Inverse Problems and Applications
    Gunther Uhlmann | Cambridge University Press, Published in 2003, 400 pages
54. Representations of Reductive p-adic Groups
    Fiona Murnaghan | University of Toronto, Published in 2009, 128 pages
55. Foundations of Mathematics
    Stephen G. Simpson | Pennsylvania State University, Published in 2008, 123 pages
56. Probability Theory: The Logic of Science
    E. T. Jaynes | Cambridge University Press, Published in 2002, 758 pages
57. Understanding Algebra
    James W. Brennan | , Published in 2011, 106 pages
58. Spherical Trigonometry
    I. Todhunter | Macmillan and co, Published in 1886, 189 pages
59. Commutative Algebra and Noncommutative Algebraic Geometry
    David Eisenbud, et al. | Cambridge University Press, Published in 2015, 775 pages
60. Algebraic Geometry over the Complex Numbers
    Donu Arapura | Purdue University, Published in 2009, 234 pages
61. Linear Functional Analysis
    W W L Chen | Macquarie University, Published in 2008, 129 pages
62. Scientific Computing
    Jeffrey R. Chasnov | Harvey Mudd College, Published in 2013, 152 pages
63. Heegner Points and Rankin L-Series
    Henri Darmon, Shou-Wu Zhang | Cambridge University Press, Published in 2004, 382 pages
64. Discrete Optimization
    Guido Schaefer | Utrecht University, Published in 2012, 97 pages
65. Elliptic Functions
    Arthur Latham Baker | John Wiley & Sons, Published in 1890, 147 pages
66. Probability, Statistics and Stochastic Processes
    Cosma Rohilla Shalizi | , Published in 2001, 71 pages
67. Topology of Numbers
    Allen Hatcher | Cornell University, Published in 2014, 122 pages
68. Euclidean Plane and Its Relatives
    Anton Petrunin | , Published in 2017, 201 pages
69. Applied Stochastic Processes in Science and Engineering
    Matt Scott | University of Waterloo, Published in 2013, 316 pages
70. Existence, multiplicity, perturbation, and concentration results for a class of quasi-linear elliptic problems
    Marco Squassina | Electronic Journal of Differential Equations, Published in 2006, 213 pages
71. The Adams-Novikov Spectral Sequence and the Homotopy Groups of Spheres
    Paul Goerss | Northwestern University, Published in 2007, 47 pages
72. Revealing Statistical Principles
    J.K. Lindsey | Hodder Education Publishers, Published in 1999, 225 pages
73. Beginning Statistics
    Douglas S. Shafer, Zhiyi Zhang | lardbucket.org, Published in 2014, 716 pages
74. Topics in Real and Functional Analysis
    Gerald Teschl | Universitaet Wien, Published in 2016, 486 pages
75. Generic Polynomials: Constructive Aspects of the Inverse Galois Problem
    C. U. Jensen, A. Ledet, N. Yui | Cambridge University Press, Published in 2002, 268 pages
76. Pictures of Julia and Mandelbrot Sets
    | Wikibooks, Published in 2010
77. Differential Geometry: A Geometric Introduction
    David W. Henderson | Project Euclid, Published in 2013, 250 pages
78. Shape Analysis, Lebesgue Integration and Absolute Continuity Connections
    Javier Bernal | arXiv.org, Published in 2019, 82 pages
79. Funny Little Calculus Text
    Robert Ghrist | University of Pennsylvania, Published in 2012, 46 pages
80. Introduction to Stokes Structures
    Claude Sabbah | arXiv, Published in 2010, 157 pages
81. Introduction to Functional Analysis
    Vladimir V. Kisil | University of Leeds, Published in 2021, 166 pages
82. Contact Topology
    George Torres, Robert Gompf | University of Texas at Austin, Published in 2017, 51 pages
83. Analytic Geometry and Principles of Algebra
    A. Ziwet, L.A. Hopkins, E.R. Hedrick | The Macmillan Company, Published in 1913, 398 pages
84. Non-Euclidean Geometry
    Henry Manning | Ginn and Company, Published in 1901, 93 pages
85. Intuitionistic Logic
    Nick Bezhanishvili, Dick de Jongh | Universiteit van Amsterdam, Published in 2010, 57 pages
86. Introduction to the Elementary Functions
    Raymond Benedict McClenon | Ginn and company, Published in 1918, 244 pages
87. Six Septembers: Mathematics for the Humanist
    Patrick Juola, Stephen Ramsay | Zea Books, Published in 2017, 433 pages
88. Surgical Methods in Rigidity
    F.T. Farrell | Springer, Published in 1996, 108 pages
89. Introduction to Algebraic Geometry
    Sudhir R. Ghorpade | Indian Institute of Technology Bombay, Published in 2007, 20 pages
90. CK-12 Trigonometry
    Mara Landers, Brenda Meery | CK-12 Foundation, Published in 2009, 629 pages
91. Lectures on Field Theory and Ramification Theory
    Sudhir R. Ghorpade | Indian Institute of Technology, Bombay, Published in 2008, 36 pages
92. Vector Analysis and the Theory of Relativity
    Francis Dominic Murnaghan | Johns Hopkins press, Published in 1922, 156 pages
93. Elementary Number Theory
    William Edwin Clark | University of South Florida, Published in 2002, 129 pages
94. Spherical Harmonics in p Dimensions
    Christopher Frye, Costas J. Efthimiou | arXiv, Published in 2012, 95 pages
95. The Philosophy of Mathematics
    Albert Taylor Bledsoe | J.B. Lippincott & Co, Published in 1868, 248 pages
96. Geometry and Group Theory
    Christopher Pope | Texas A&M University, Published in 2008, 181 pages
97. Introductory Statistics Notes
    Jamie DeCoster | University of Alabama, Published in 1998, 48 pages
98. Introductory Mathematical Analysis
    W.P. Webber, L.C. Plant | John Wiley & sons, Published in 1919, 332 pages
99. Lectures on Torus Embeddings and Applications
    Tadao Oda | Tata Institute of Fundamental Research, Published in 1978, 158 pages
100. Lectures on Commutative Algebra
     Sudhir R. Ghorpade | Indian Institute of Technology, Bombay, Published in 2006, 64 pages
101. Noncommutative Geometry, Quantum Fields and Motives
     Alain Connes, Matilde Marcolli | American Mathematical Society, Published in 2007, 705 pages
102. Essential Mathematics
     Franco Vivaldi | , Published in 2006, 74 pages
103. Real Functions in One Variable: Simple Differential Equations I
     Leif Mejlbro | BookBoon, Published in 2007, 118 pages
104. Fundamentals of Mathematics
     Denny Burzynski, Wade Ellis | OpenStax CNX, Published in 2023, 910 pages
105. Functions and Their Graphs
     J. Nicholas, J. Hunter, J. Hargreaves | University of Sydney, Published in 1997, 77 pages
106. The Geometry and Topology of Braid Groups
     Jenny Wilson | University of Michigan, Published in 2018, 30 pages
107. Numerical Solutions of Engineering Problems
     K. Nandakumar | University of Alberta, Published in 1998, 193 pages
108. Methods for Finding Zeros in Polynomials
     Leif Mejlbro | BookBoon, Published in 2011, 122 pages
109. The Calculus Integral
     Brian S. Thomson | ClassicalRealAnalysis.com, Published in 2010, 303 pages
110. The Convenient Setting of Global Analysis
     Andreas Kriegl, Peter W. Michor | American Mathematical Society, Published in 1997, 624 pages
111. Advanced Geometry for High Schools: Synthetic and Analytical
     A.H. McDougall | Copp, Clark, Published in 1919, 236 pages
112. Applied Finite Mathematics
     Rupinder Sekhon | Connexions, Published in 2011, 347 pages
113. An introduction to Algebra and Topology
     Pierre Schapira | University of Luxemburg, Published in 2012, 78 pages
114. Congruence Lattices of Finite Algebras
     William DeMeo | arXiv, Published in 2012, 130 pages
115. Statistics: Methods and Applications
     Thomas Hill, Paul Lewicki | StatSoft, Inc., Published in 2005, 800 pages
116. Magic Squares and Cubes
     W. S. Andrews | Open Court Publishing Company, Published in 1917, 428 pages
117. Linear Algebra: Theorems and Applications
     Hassan Abid Yasser (ed.) | InTech, Published in 2012, 250 pages
118. Elementary Textbook on the Calculus
     Virgil Snyder | Cornell University Library, Published in 1912, 388 pages
119. Partial Differential Equations
     Erich Miersemann | Leipzig University, Published in 2012, 205 pages
120. Lectures on the Mean-Value and Omega Theorems for the Riemann Zeta-Function
     K. Ramachandra | Tata Institute of Fundamental Research, Published in 1995, 190 pages
121. Lectures on Cauchy Problem
     Sigeru Mizohata | Tata Institute of Fundamental Research, Published in 1965, 191 pages
122. Practical Plane and Solid Geometry for Advanced Students
     J. Harrison, G.A. Baxandall | Macmillan, Published in 1899, 584 pages
123. Computer Age Statistical Inference: Algorithms, Evidence, and Data Science
     Bradley Efron, Trevor Hastie | Stanford University, Published in 2016, 493 pages
124. Lectures on Optimization: Theory and Algorithms
     John Cea | Tata Institute of Fundamental Research, Published in 1978, 237 pages
125. Introduction to Differential Topology, de Rham Theory and Morse Theory
     Michael Muger | Radboud University, Published in 2005, 80 pages
126. Perturbation Theory of Dynamical Systems
     Nils Berglund | arXiv, Published in 2001, 111 pages
127. Trigonometry
     Michael Corral | mecmath.net, Published in 2009, 174 pages
128. Origami and Geometric Constructions
     Robert J. Lang | , Published in 2003, 55 pages
129. Bayesian Field Theory
     J. C. Lemm | arXiv.org, Published in 2000, 200 pages
130. A Scrap-Book of Elementary Mathematics
     William F. White | The Open Court Publishing Company, Published in 1908, 234 pages
131. Algebraic Equations
     George Ballard Mathews | Cambridge University Press, Published in 1907, 88 pages
132. Basic Concepts of Enriched Category Theory
     Max Kelly | Cambridge University Press, Published in 2005, 143 pages
133. Fractals
     | Wikibooks, Published in 2013
134. Course of Differential Geometry
     Ruslan Sharipov | Samizdat Press, Published in 2004, 132 pages
135. A Problem-Solving Approach to College Algebra
     Marcel B. Finan | Arkansas Tech University, Published in 2002, 92 pages
136. A Second Semester of Linear Algebra
     S. E. Payne | University of Colorado Denver, Published in 2009, 236 pages
137. First Year Mathematics
     George W. Evans, John A. Marsh | Charles E. Merrill company, Published in 1916, 268 pages
138. Introduction to Shimura Varieties
     J.S. Milne | , Published in 2004, 149 pages
139. forall x: An Introduction to Formal Logic
     P.D. Magnus | , Published in 2008, 160 pages
140. Graph Theory Lessons
     Christopher P. Mawata | Math Cove, Published in 2018, 384 pages
141. Euclid's 'Elements' Redux
     Daniel Callahan | starrhorse.com, Published in 2014, 359 pages
142. Dynamics in One Complex Variable
     John Milnor | Princeton University Press, Published in 1991, 146 pages
143. Algebraic Invariants
     Leonard E. Dickson | J. Wiley & Sons, Published in 1914, 122 pages
144. The Elementary Properties of the Elliptic Functions
     Alfred Cardew Dixon | Macmillan, Published in 1894, 164 pages
145. Complex Analysis
     C. McMullen | Harvard University, Published in 2010, 106 pages
146. APEX Calculus
     Gregory Hartman, et al. | APEXcalculus.com, Published in 2015, 874 pages
147. Periodic Solutions for Evolution Equations
     Mihai Bostan | American Mathematical Society, Published in 2002, 41 pages
148. Vector Analysis
     J. Willard Gibbs | Yale University Press, Published in 1929, 432 pages
149. Precalculus
     David H. Collingwood, K. David Prince, Matthew M. Conroy | , Published in 2011, 335 pages
150. Riemannian Geometry
     Richard L. Bishop | arXiv, Published in 2013, 67 pages
151. Stacks Project
     Johan de Jong, et al. | , Published in 2012, 3428 pages
152. Introduction to Analysis
     Irena Swanson | Purdue University, Published in 2020, 353 pages
153. Iterative Methods for Optimization
     C.T. Kelley | Society for Industrial Mathematics, Published in 1987, 188 pages
154. Principles of Data Analysis
     Cappella Archive | Prasenjit Saha, Published in 2003, 113 pages
155. Logic for Computer Science
     | Wikibooks, Published in 2010
156. Seminar on Triples and Categorical Homology Theory
     B. Eckmann | Springer, Published in 1969, 304 pages
157. A First Course in Topology: Continuity and Dimension
     John McCleary | American Mathematical Society, Published in 2006, 210 pages
158. A Course in Mathematical Analysis
     E. Goursat, O. Dunkel, E.R. Hedrick | Ginn & company, Published in 1904, 1890 pages
159. Knot Diagrammatics
     Louis H. Kauffman | arXiv, Published in 2004, 107 pages
160. Geometry with an Introduction to Cosmic Topology
     Mike Hitchman | , Published in 2017, 177 pages
161. Elementary Statistical Methods
     Christian Akrong Hesse | ResearchGate GmbH, Published in 2011, 83 pages
162. Calculus
     H.W. March, H.C. Wolff | McGraw-Hill, Published in 1917, 388 pages
163. Symplectic Geometry
     Ana Cannas da Silva | Princeton University, Published in 2004, 109 pages
164. An Introduction to D-Modules
     Jean-Pierre Schneiders | Universite de Liege, Published in 1991, 73 pages
165. Notes on Numerical Linear Algebra
     George Benthien | , Published in 2006, 72 pages
166. Introduction to Probability Theory and Statistics for Linguistics
     Marcus Kracht | UCLA, Published in 2005, 137 pages
167. Computations in Algebraic Geometry with Macaulay 2
     D. Eisenbud, D. Grayson, M. Stillman, B. Sturmfels | Springer, Published in 2001, 343 pages
168. Geometry Unbound
     Kiran S. Kedlaya | , Published in 2006, 142 pages
169. A First Course in Linear Algebra
     Ken Kuttler | Lyryx, Published in 2017, 608 pages
170. Introduction to Algebraic Geometry
     Yuriy Drozd | , Published in 1999, 104 pages
171. Statistics
     | Wikibooks, Published in 2013, 236 pages
172. Unsolved Problems in Virtual Knot Theory and Combinatorial Knot Theory
     R. Fenn, D.P. Ilyutko, L.H. Kauffman, V.O. Manturov | arXiv, Published in 2014, 66 pages
173. Partial Differential Equations of Mathematical Physics
     William W. Symes | Rice University, Published in 2006, 105 pages
174. Mathematical Biology
     Jeffrey R. Chasnov | The Hong Kong University of Science & Technology, Published in 2010, 115 pages
175. A Practical Guide to Robust Optimization
     Bram L. Gorissen, Ihsan Yanıkoğlu, Dick den Hertog | arXiv, Published in 2015, 29 pages
176. Problems with and Without ... Problems!
     Florentin Smarandache | viXra, Published in 2011, 136 pages
177. The Elements of Non-Euclidean Geometry
     D.M.Y. Sommerville | G. Bell & Sons Ltd., Published in 1919, 300 pages
178. Lectures On Some Fixed Point Theorems Of Functional Analysis
     F.F. Bonsall | Tata Institute Of Fundamental Research, Published in 1962, 147 pages
179. Ergodic Optimization, Zero Temperature Limits and the Max-plus Algebra
     A. T. Baraviera, R. Leplaideur, A. O. Lopes | arXiv, Published in 2013, 106 pages
180. Langlands Correspondence for Loop Groups
     Edward Frenkel | Cambridge University Press, Published in 2007, 393 pages
181. Differential Geometrical Theory of Statistics
     Frederic Barbaresco, Frank Nielsen (eds) | MDPI AG, Published in 2017, 474 pages
182. Smarandache Near-rings
     W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 201 pages
183. Differential Calculus for Beginners
     Alfred Lodge | Deighton, Bell, & Co., Published in 1905, 322 pages
184. Linear Algebra: An Introduction to Mathematical Discourse
     | Wikibooks, Published in 2011
185. Model-Theoretic Logics
     J. Barwise, S. Feferman | Springer, Published in 1985, 893 pages
186. Analysis of Puzzles
     Umesh Nair | , Published in 2006, 88 pages
187. Elementary Fuzzy Matrix Theory and Fuzzy Models for Social Scientists
     W. B. Vasantha Kandasamy, at al. | arXiv, Published in 2007, 352 pages
188. Analytic Geometry
     L. P. Siceloff, G. Wentworth, D. E. Smith | Ginn and Company, Published in 1922, 296 pages
189. Vedic Mathematics
     W. B. Kandasamy, F. Smarandache | Automaton, Published in 2006, 220 pages
190. An Introduction to Mathematical Reasoning
     Peter J. Eccles | Cambridge University Press, Published in 2007, 364 pages
191. Discrete Mathematics
     W W L Chen | Macquarie University, Published in 2008, 125 pages
192. Elementary Differential Equations with Boundary Value Problems
     William F. Trench | Brooks Cole, Published in 2013, 807 pages
193. E 'Infinite' Ring Spaces and E 'Infinite' Ring Spectra
     J. P. May | Springer, Published in 1977, 280 pages
194. Abstract and Concrete Categories: The Joy of Cats
     Jiri Adamek, Horst Herrlich, George Strecker | John Wiley & Sons, Published in 1990, 496 pages
195. Functional Differential Geometry
     Gerald Jay Sussman, Jack Wisdom | MIT, Published in 2005, 77 pages
196. Fundamentals of Analysis
     W W L Chen | Macquarie University, Published in 2008, 152 pages
197. Complex Variables with Applications
     Jeremy Orloff | LibreTexts, Published in 2021, 289 pages
198. Introduction to Characteritic Classes and Index Theory
     Jean-Pierre Schneiders | Universidade de Lisboa, Published in 2000, 236 pages
199. A Primer on Homotopy Colimits
     Daniel Dugger | University of Oregon, Published in 2008, 72 pages
200. Elementary Analytic Functions: Complex Functions Theory a-1
     Leif Mejlbro | BookBoon, Published in 2010, 145 pages
201. Lectures on Mean Periodic Functions
     J.P. Kahane | Tata Institute of Fundamental Research, Published in 1959, 165 pages
202. Applied Analysis
     I.M. Sigal, M. Merkli | University of Toronto, Published in 2001, 176 pages
203. Lectures on Representations of Complex Semi-Simple Lie Groups
     Thomas J. Enright | Tata Institute of Fundamental Research, Published in 1981, 94 pages
204. Natural Operations in Differential Geometry
     Ivan Kolar, Peter W. Michor, Jan Slovak | Springer, Published in 1993, 437 pages
205. Algebraic and Geometric Topology
     Andrew Ranicki, Norman Levitt, Frank Quinn | Springer, Published in 1985, 436 pages
206. An Invitation to General Algebra and Universal Constructions
     George M. Bergman | Henry Helson, Published in 1998, 398 pages
207. Synthetic Geometry of Manifolds
     Anders Kock | University of Aarhus, Published in 2009, 314 pages
208. Arimaa
     | Wikibooks, Published in 2011
209. Foundations of Combinatorics with Applications
     Edward A. Bender, S. Gill Williamson | Dover Publications, Published in 2006, 480 pages
210. Topics in Logic and Foundations
     Stephen G. Simpson | The Pennsylvania State University, Published in 2005, 89 pages
211. Foundations in Statistical Reasoning
     Pete Kaslik | , Published in 2018, 310 pages
212. Foundations of Constructive Probability Theory
     Yuen-Kwok Chan | arXiv.org, Published in 2019, 517 pages
213. Data Assimilation: A Mathematical Introduction
     K.J.H. Law, A.M. Stuart, K.C. Zygalakis | arXiv.org, Published in 2015, 158 pages
214. Elementary Abstract Algebra: Examples and Applications
     Justin Hill, Chris Thron | Texas A&M University, Published in 2017, 785 pages
215. Numbers and Symbols: From Counting to Abstract Algebras
     Roy McWeeny | Learning Development Institute, Published in 2007, 53 pages
216. Mathematics for the Physical Sciences
     Herbert S Wilf | Dover Publications, Published in 1962, 298 pages
217. The Handbook of Essential Mathematics
     John C. Sparks | Air Force Publication, Published in 2006, 205 pages
218. Markov Chains and Mixing Times
     D. A. Levin, Y. Peres, E. L. Wilmer | American Mathematical Society, Published in 2008, 387 pages
219. A Course in Universal Algebra
     S. Burris, H.P. Sankappanavar | Springer-Verlag, Published in 1982, 331 pages
220. Lectures on Sieve Methods and Prime Number Theory
     Y. Motohashi | Tata Institute of Fundamental Research, Published in 1983, 181 pages
221. Group Theory
     Ferdi Aryasetiawan | University of Lund, Published in 1997, 140 pages
222. The Continuum and Other Types of Serial Order
     Edward V. Huntington | Dover Publications, Published in 1917, 90 pages
223. Probability and Mathematical Statistics
     Prasanna Sahoo | University of Louisville, Published in 2008, 703 pages
224. A Course of Elementary Mathematics
     John Radford Young | Wm. H. Allen, Published in 1862, 658 pages
225. Iterative Methods for Linear and Nonlinear Equations
     C.T. Kelley | SIAM, Published in 1995, 172 pages
226. CDBooK: Introduction to Vassiliev Knot invariants
     S.Chmutov, S.Duzhin, J.Mostovoy | Ohio State Universit, Published in 2009, 460 pages
227. Operators on Hilbert Space
     John Erdos | King's College London, Published in 2004, 52 pages
228. Math That Makes You Go Wow
     M. Boittin, E. Callahan, D. Goldberg, J. Remes | Ohio State University, Published in 1998
229. Geometric Theorems and Arithmetic Functions
     Jozsef Sandor | American Research Press, Published in 2002, 55 pages
230. Tunneling Through the Math Barrier
     William J. Meese | arXiv.org, Published in 2018, 187 pages
231. A Brief History of Mathematics
     Karl Fink | Open Court Publishing Company, Published in 1900, 366 pages
232. Riemannian Geometry: Definitions, Pictures, and Results
     Adam Marsh | arXiv, Published in 2014, 69 pages
233. Wave Propagation Analysis with Boundary Element Method
     Chiara Guardasoni | Ledizioni LediPublishing, Published in 2010, 130 pages
234. Orders of Infinity
     G. H. Hardy | Cambridge University Press, Published in 1910, 101 pages
235. The Hauptvermutung Book: A Collection of Papers on the Topology of Manifolds
     A.A. Ranicki, et al, | Springer, Published in 1996, 194 pages
236. Theoretic Arithmetic
     Thomas Taylor, A. J. Valpy | , Published in 1816, 286 pages
237. The Calculus Of Finite Differences
     L. M. Milne Thomson | Macmillan and co, Published in 1933, 590 pages
238. Community Calculus
     David Guichard, Neal Koblitz | , Published in 2008, 446 pages
239. Differential Forms and Cohomology: Course
     Peter Saveliev | Intelligent Perception, Published in 2013, 300 pages
240. Flatland: A Romance of Many Dimensions
     Edwin A. Abbot | Seeley and Co., Published in 1884, 120 pages
241. Linear Algebra Examples C-1: Linear equations, matrices and determinants
     Leif Mejlbro | BookBoon, Published in 2009, 113 pages
242. Categories and Homological Algebra
     Pierre Schapira | UPMC, Published in 2011, 125 pages
243. Mathematical Reasoning: Writing and Proof
     Ted Sundstrom | Pearson Education, Inc., Published in 2013, 591 pages
244. Harmonic Analysis
     Russell Brown | University of Kentucky, Published in 2009, 191 pages
245. Nonstandard Analysis in Topology
     Sergio Salbany, Todor Todorov | arXiv, Published in 2011, 48 pages
246. Linear Algebra: A Course for Physicists and Engineers
     Arak Mathai,‎ Hans J. Haubold | De Gruyter Open, Published in 2017, 450 pages
247. Basic Concepts in Modal Logic
     Edward N. Zalta | Stanford University, Published in 2011, 91 pages
248. Higher Elementary Geometry
     Venugopal | , Published in 1958, 135 pages
249. Topics in Discrete Mathematics
     A.F. Pixley | Harvey Mudd College, Published in 2010, 173 pages
250. Exterior Differential Systems
     Robert L. Bryant, et al. | MSRI, Published in 1991, 406 pages
251. Abstract Algebra
     John A. Beachy, William D. Blair | Waveland, Published in 2006, 506 pages
252. A Text-Book of Geometry
     G. A. Wentworth | Ginn & Company, Published in 1898, 264 pages
253. Invitation to Dynamical Systems
     Edward R. Scheinerman | Prentice Hall College Div, Published in 2000, 384 pages
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332. Analysis on Homogeneous Spaces
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356. Think Stats: Probability and Statistics for Programmers
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362. Discrete Mathematics
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365. Tensor Trigonometry
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369. Euclid and His Twentieth Century Rivals
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384. Quick Introduction to Tensor Analysis
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386. Nonlinear Fourier Analysis
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437. Algebraic Curves: an Introduction to Algebraic Geometry
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447. Stochastic Integration and Stochastic Differential Equations
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448. A set of new Smarandache functions, sequences and conjectures in number theory
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449. Problems in Mathematical Analysis
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450. A Cultural Paradox: Fun in Mathematics
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451. Model Categories and Simplicial Methods
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452. Synthetic Differential Geometry
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454. An Introduction to K-theory and Cyclic Cohomology
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455. The First Six Books of the Elements of Euclid
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457. Introduction to Differential Topology
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458. An Introductory Course Of Mathematical Analysis
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459. Everything you wanted to know about Data Analysis and Fitting
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462. Vector Analysis Notes
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463. Linear Complementarity, Linear and Nonlinear Programming
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464. Honors Calculus
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465. Lectures on the topological recursion for Higgs bundles and quantum curves
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467. Discrete Mathematics for Computer Science
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470. Advances in Graph Algorithms
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473. Multivariable and Vector Analysis
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476. Notes on Measure and Integration
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483. Lectures on Elementary Probability
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485. Banach Spaces of Analytic Functions
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488. First Book in Arithmetic
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489. Markov Chains and Stochastic Stability
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490. Active Calculus
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491. Foundations of Infinitesimal Calculus
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492. Elementary Set Theory with a Universal Set
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493. First Course in the Theory of Equations
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496. Functional Analysis
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497. Vector Calculus: Course
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498. Finite Group Representations for the Pure Mathematician
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499. Robust Optimization
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500. Differential Equations and Linear Algebra
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