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. Business Mathematics: A Textbook
   Edward I. Edgerton, Wallace E. Bartholomew | The Ronald Press Co., Published in 1921, 331 pages
2. Optimization Algorithms on Matrix Manifolds
   P.-A. Absil, R. Mahony, R. Sepulchre | Princeton University Press, Published in 2007, 240 pages
3. Discrete Mathematics with Algorithms
   M. O. Albertson, J. P. Hutchinson | J. Wiley, Published in 1988, 560 pages
4. The Calculus for Engineers and Physicists
   Robert H. Smith | Griffin, Published in 1908, 268 pages
5. Basic Category Theory
   Jaap van Oosten | University of Utrecht, Published in 2007, 88 pages
6. How We Got From There to Here: A Story of Real Analysis
   Robert Rogers, Eugene Boman | Open SUNY Textbooks, Published in 2013, 210 pages
7. Computations in Algebraic Geometry with Macaulay 2
   D. Eisenbud, D. Grayson, M. Stillman, B. Sturmfels | Springer, Published in 2001, 343 pages
8. Geometry of Numbers with Applications to Number Theory
   Pete L. Clark | University of Georgia, Published in 2013, 138 pages
9. Chaos: Classical and Quantum
   Predrag Cvitanovic | ChaosBook.org, Published in 2008, 813 pages
10. An Infinitely Large Napkin
    Evan Chen | MIT, Published in 2016, 615 pages
11. An Introduction to Mathematical Logic
    Wolfram Pohlers, Thomas Glass | , Published in 1992, 229 pages
12. Lectures On Irregularities Of Distribution
    Wolfgang M. Schmidt | Tata Institute of Fundamental Research, Published in 1977, 137 pages
13. Handbook of Graph Drawing and Visualization
    Roberto Tamassia (ed.) | CRC Press, Published in 2013, 862 pages
14. Discrete Mathematics
    | Wikibooks, Published in 2012
15. Algebraic and Geometric Methods in Enumerative Combinatorics
    Federico Ardila | arXiv, Published in 2014, 143 pages
16. The Geometry and Topology of Braid Groups
    Jenny Wilson | University of Michigan, Published in 2018, 30 pages
17. Introduction to Randomness and Statistics
    Alexander K. Hartmann | arXiv, Published in 2009, 95 pages
18. Preparing for College Physics
    David Murdock | TTU, Published in 2002, 64 pages
19. Non-Uniform Random Variate Generation
    Luc Devroye | Springer, Published in 1986, 843 pages
20. Notes on Linear Algebra
    Peter J. Cameron | Queen Mary, University of London, Published in 2008, 124 pages
21. Perturbation Theory of Dynamical Systems
    Nils Berglund | arXiv, Published in 2001, 111 pages
22. Algebra: A Computational Introduction
    John Scherk | Chapman & Hall, Published in 2000, 419 pages
23. Continuous Distributions
    Leif Mejlbro | BookBoon, Published in 2009, 167 pages
24. First Year Mathematics
    George W. Evans, John A. Marsh | Charles E. Merrill company, Published in 1916, 268 pages
25. An Elementary Illustrated Introduction to Simplicial Sets
    Greg Friedman | arXiv.org, Published in 2016, 58 pages
26. A Primer of Commutative Algebra
    J.S. Milne | , Published in 2011, 75 pages
27. Hopf Algebras in General and in Combinatorial Physics: a practical introduction
    G.H.E. Duchamp, et al. | arXiv, Published in 2008, 40 pages
28. Combinatorial Maps: Tutorial
    Dainis Zeps | Latvian University, Published in 2007, 61 pages
29. Holonomy Groups in Riemannian Geometry
    Andrew Clarke, Bianca Santoro | arXiv, Published in 2012, 124 pages
30. Algorithmic Graph Theory
    David Joyner, Minh Van Nguyen, Nathann Cohen | Google Code, Published in 2010, 105 pages
31. Bayesian Methods for Statistical Analysis
    Borek Puza | ANU Press, Published in 2015, 697 pages
32. Lectures on Siegel's Modular Functions
    H. Maass | Tata Institute of Fundamental Research, Published in 1955, 286 pages
33. An Episodic History of Mathematics
    Steven G. Krantz | Mathematical Association of America, Published in 2006, 483 pages
34. Linear Algebra with Applications
    W. Keith Nicholson | Lyryx, Published in 2018, 698 pages
35. Multivariable Calculus
    George Cain, James Herod | , Published in 1997
36. Statistics for Health, Life and Social Sciences
    Denis Anthony | BookBoon, Published in 2011, 292 pages
37. Probability and Statistics: A Course for Physicists and Engineers
    Arak M. Mathai, Hans J. Haubold | De Gruyter Open, Published in 2017, 582 pages
38. An Architecture for Combinator Graph Reduction
    Philip J. Koopman, Jr. | Academic Press, Published in 1990, 176 pages
39. Lectures on Topics in Algebraic K-Theory
    Hyman Bass | Tata Institute of Fundamental Research, Published in 1967, 138 pages
40. The Continuum and Other Types of Serial Order
    Edward V. Huntington | Dover Publications, Published in 1917, 90 pages
41. Nonlinear Analysis and Differential Equations
    Klaus Schmitt, Russell C. Thompson | University of Utah, Published in 2004, 158 pages
42. Applied Mathematics by Example
    Jeremy Pickles | BookBoon, Published in 2010, 164 pages
43. Statistical Theory
    Ryan Martin | University of Illinois at Chicago, Published in 2015, 117 pages
44. An Introduction to the Smarandache Function
    Charles Ashbacher | Erhus Univ Pr, Published in 1995, 62 pages
45. Hilbert Spaces and Operators on Hilbert Spaces
    Leif Mejlbro | BookBoon, Published in 2009, 109 pages
46. Introduction to Lie Groups and Lie Algebras
    Alexander Kirillov, Jr. | SUNY at Stony Brook, Published in 2010, 136 pages
47. Special Set Linear Algebra and Special Set Fuzzy Linear Algebra
    W. B. V. Kandasamy, F. Smarandache, K. Ilanthenral | CuArt, Published in 2009, 469 pages
48. Lectures on Deformations of Singularities
    Michael Artin | Tata Institute of Fundamental Research, Published in 1976, 110 pages
49. Topology Lecture Notes
    Thomas Ward | UEA, Published in 2001, 88 pages
50. Elementary Abstract Algebra
    W. Edwin Clark | University of South Florida, Published in 2001, 105 pages
51. Explaining Logarithms
    Dan Umbarger | Brown Books Publishing Group, Published in 2006, 112 pages
52. Spherical Harmonics in p Dimensions
    Christopher Frye, Costas J. Efthimiou | arXiv, Published in 2012, 95 pages
53. Lecture Notes on Motivic Cohomology
    Carlo Mazza, Vladimir Voevodsky, Charles Weibel | AMS, Published in 2005, 228 pages
54. Ten British Mathematicians
    Alexander Macfarlane | , Published in 1916, 108 pages
55. Tight and Taut Submanifolds
    Thomas E. Cecil, Shiing-shen Chern | Cambridge University Press, Published in 1997, 349 pages
56. A Summary of Calculus
    Karl Heinz Dovermann | University of Hawaii, Published in 2003, 164 pages
57. Definitions, Solved and Unsolved Problems, Conjectures, and Theorems in Number Theory and Geometry
    Florentin Smarandache | Amer Research Pr, Published in 2000, 84 pages
58. Linear Algebra
    Paul Dawkins | Lamar University, Published in 2011, 331 pages
59. generatingfunctionology
    Herbert S. Wilf | A K Peters, Ltd., Published in 2006, 245 pages
60. Elementary Geometry: Practical and Theoretical
    C. Godfrey, A. W. Siddons | Cambridge University Press, Published in 1919, 438 pages
61. Quick Notes - Statistics
    Walter Antoniotti | 21st Century Learning Products, Published in 2001, 271 pages
62. Theory of Groups of Finite Order
    William Burnside | Cambridge University Press, Published in 1897, 456 pages
63. Convex Geometric Analysis
    Keith Ball, Vitali Milman | Cambridge University Press, Published in 1998, 236 pages
64. An Elementary Treatise on Conic Sections
    Charles Smith | The Macmillan Company, Published in 1905, 378 pages
65. Probability Theory and Stochastic Processes with Applications
    Oliver Knill | Overseas Press, Published in 2009, 382 pages
66. Functional Differential Geometry
    Gerald Jay Sussman, Jack Wisdom | MIT, Published in 2005, 77 pages
67. Introduction to Probability
    C. M. Grinstead, J. L. Snell | American Mathematical Society, Published in 1997, 520 pages
68. Ricci Flow and the Poincare Conjecture
    John Morgan, Gang Tian | American Mathematical Society, Published in 2007, 493 pages
69. Algebraic Invariants
    Leonard E. Dickson | J. Wiley & Sons, Published in 1914, 122 pages
70. An Introduction to Asymptotic Analysis
    Simon J.A. Malham | Heriot-Watt University, Published in 2010, 56 pages
71. OpenIntro Statistics
    D.M. Diez, C.D. Barr, M. Cetinkaya-Rundel | OpenIntro, Published in 2012, 426 pages
72. Lectures on the Algebraic Theory of Fields
    K.G. Ramanathan | Tata Institute of Fundamental Research, Published in 1956, 228 pages
73. Differential Geometry: A Geometric Introduction
    David W. Henderson | Project Euclid, Published in 2013, 250 pages
74. Introduction to Algebraic Geometry
    Yuriy Drozd | , Published in 1999, 104 pages
75. Matrix Analysis
    Steven J Cox | Rice University, Published in 2012, 98 pages
76. Cribbage: A Strategy Guide for Beginners
    Jake Magnum | Smashwords, Published in 2016, 122 pages
77. Traveling Wave Solutions of Parabolic Systems
    A. Volpert, V. Volpert, V. Volpert | American Mathematical Society, Published in 2000, 448 pages
78. A Short Introduction to Classical and Quantum Integrable Systems
    O. Babelon | , Published in 2007, 145 pages
79. Rational Amusement for Winter Evenings
    John Jackson | Longman, Published in 1821, 138 pages
80. A. N. Whitehead's Geometric Algebra
    Stephen Blake | , Published in 2005, 280 pages
81. Topics in Algebraic Combinatorics
    Richard P. Stanley | MIT, Published in 2013, 127 pages
82. Dynamical Systems
    Jose A. Tenreiro Machado (ed.) | MDPI AG, Published in 2014, 553 pages
83. Integral Operators
    Leif Mejlbro | BookBoon, Published in 2009, 66 pages
84. Bayesian Spectrum Analysis and Parameter Estimation
    G. Larry Bretthorst | Springer, Published in 1988, 220 pages
85. Notes on Differential Geometry and Lie Groups
    Jean Gallier | University of Pennsylvania, Published in 2010
86. Geometric Exercises in Paper Folding
    T. Sundara Row | The Open Court pub. co, Published in 1917, 176 pages
87. Vector Analysis
    J. Willard Gibbs | Yale University Press, Published in 1929, 432 pages
88. Notes on Harmonic Analysis
    George Benthien | , Published in 2006, 74 pages
89. 18 Lectures on K-Theory
    Ioannis P. Zois | arXiv, Published in 2010, 137 pages
90. Topology
    Curtis T. McMullen | Harvard University, Published in 2013, 90 pages
91. Gauge Theory for Fiber Bundles
    Peter W. Michor | Universitaet Wien, Published in 1991, 106 pages
92. Lectures on Differential Geometry
    John Douglas Moore | University of California, Published in 2009, 263 pages
93. Elementary Abstract Algebra: Examples and Applications
    Justin Hill, Chris Thron | Texas A&M University, Published in 2017, 785 pages
94. Complex Analysis for Mathematics and Engineering
    John H. Mathews, Russell W. Howell | Jones & Bartlett Learning, Published in 2006, 633 pages
95. Elementary Illustrations of the Differential and Integral Calculus
    Augustus De Morgan | The Open Court Pub. Co., Published in 1899, 194 pages
96. The CRing Project: a collaborative open source textbook on commutative algebra
    Shishir Agrawal, et al. | CRing Project, Published in 2011, 493 pages
97. An Introduction to Algebraic Surgery
    Andrew Ranicki | arXiv, Published in 2000, 82 pages
98. Essential Mathematics
    Franco Vivaldi | , Published in 2006, 74 pages
99. Combinatorial Algorithms
    Albert Nijenhuis, Herbert S. Wilf | Academic Press Inc, Published in 1978, 316 pages
100. An Introduction to Higher Mathematics
     Patrick Keef, David Guichard, Russ Gordon | Whitman College, Published in 2010, 144 pages
101. Descriptive Set Theory
     David Marker | University of Illinois at Chicago, Published in 2002, 105 pages
102. Galois Groups and Fundamental Groups
     Leila Schneps | Cambridge University Press, Published in 2003, 467 pages
103. The Theory of Determinants and Their Applications
     Robert Forsyth Scott | Cambridge University Press, Published in 1904, 308 pages
104. A First Course of Partial Differential Equations in Physical Sciences and Engineering
     Marcel B. Finan | Arkansas Tech University, Published in 2009, 285 pages
105. Complex Analysis
     George Cain | , Published in 2001
106. Elliptic Curves over Function Fields
     Douglas Ulmer | arXiv, Published in 2011, 72 pages
107. Theory of the Integral
     Stanislaw Saks | Polish Mathematical Society, Published in 1937, 347 pages
108. The Canterbury Puzzles and Other Curious Problems
     Henry Ernest Dudeney | Nelson, Published in 1919, 257 pages
109. Banach Spaces of Analytic Functions
     enneth Hoffman | Prentice-Hall, Published in 1962, 242 pages
110. Notes on String Topology
     Ralph L. Cohen, Alexander A. Voronov | arXiv, Published in 2005, 95 pages
111. Notes on Differential Geometry
     Noel J. Hicks | Van Nostrand, Published in 1965, 183 pages
112. An introduction to Noncommutative Projective Geometry
     D. Rogalski | arXiv, Published in 2014, 55 pages
113. Spectral Theory
     Leif Mejlbro | BookBoon, Published in 2009, 80 pages
114. Introduction to Bimatrices
     W. B. V. Kandasamy, F. Smarandache, K. Ilanthenral | arXiv, Published in 2005, 181 pages
115. Mathematics for Algorithm and Systems Analysis
     Edward A. Bender, S. Gill Williamson | Dover Publications, Published in 2005, 256 pages
116. Symplectic Geometry
     Ana Cannas da Silva | Princeton University, Published in 2004, 109 pages
117. Linear Algebra Done Wrong
     Sergei Treil | , Published in 2004, 222 pages
118. Categories and Homological Algebra
     Pierre Schapira | UPMC, Published in 2011, 125 pages
119. The Elements of Solid Geometry
     William C. Bartol | Leach, Shewell & Sanborn, Published in 1893, 112 pages
120. Clifford Algebra, Geometric Algebra, and Applications
     Douglas Lundholm, Lars Svensson | arXiv, Published in 2009, 117 pages
121. Essays on the Theory of Numbers
     Richard Dedekind | The Open Court Publishing, Published in 1901, 78 pages
122. Probability Theory
     S. R. S. Varadhan | New York University, Published in 2000, 300 pages
123. Basic Category Theory
     Tom Leinster | arXiv, Published in 2016, 191 pages
124. Greek Geometry from Thales to Euclid
     George Johnston Allman | Dublin University Press, Published in 1877, 248 pages
125. Introduction to Statistical Thinking
     Benjamin Yakir | The Hebrew University of Jerusalem, Published in 2011, 324 pages
126. The Homology of Iterated Loop Spaces
     F. R. Cohen, T. J. Lada, P. J. May | Springer, Published in 2009, 490 pages
127. CK-12 Basic Probability and Statistics: A Short Course
     Brenda Meery | CK-12.org, Published in 2010, 201 pages
128. Solid Geometry, with Problems and Applications
     H. E. Slaught, N. J. Lennes | Allyn and Bacon, Published in 1919, 242 pages
129. An Introduction to Tensors for Students of Physics and Engineering
     Joseph C. Kolecki | Glenn Research Center, Published in 2002, 29 pages
130. Precalculus
     David H. Collingwood, K. David Prince, Matthew M. Conroy | , Published in 2011, 335 pages
131. Mixed Motives
     Marc Levine | American Mathematical Society, Published in 1998, 523 pages
132. Inside Out: Inverse Problems and Applications
     Gunther Uhlmann | Cambridge University Press, Published in 2003, 400 pages
133. On Advanced Analytic Number Theory
     C.L. Siegel | Tata Institute of Fundamental Research, Published in 1961, 241 pages
134. Geometry of Surfaces
     Nigel Hitchin | , Published in 2013, 101 pages
135. The Philosophy of Mathematics
     Albert Taylor Bledsoe | J.B. Lippincott & Co, Published in 1868, 248 pages
136. Abelian Varieties
     J. S. Milne | , Published in 2008, 172 pages
137. Introduction to Numerical Methods and Matlab Programming for Engineers
     Todd Young, Martin J. Mohlenkamp | Ohio University, Published in 2017, 182 pages
138. A Course In Algebraic Number Theory
     Robert B. Ash | University of Illinois, Published in 2003
139. Category Theory for Computing Science
     Michael Barr, Charles Wells | Prentice Hall, Published in 1998, 544 pages
140. Orbital Integrals on Reductive Lie Groups and Their Algebras
     Francisco Bulnes | InTech, Published in 2013, 181 pages
141. Calculus Unlimited
     Jerrold E. Marsden, A. Weinstein | Benjamin-Cummings Publishing Co., Published in 1981, 246 pages
142. First Steps in Numerical Analysis
     R. Hosking, S. Joe, D. Joyce, and J. Turner | , Published in 1998, 338 pages
143. Practical Mathematics for Home Study
     Claude Irwin Palmer | McGraw-Hill, Published in 1919, 528 pages
144. Mathematical Analysis I
     Elias Zakon | The Trillia Group, Published in 2004, 367 pages
145. A Feel for Statistics
     Ivan Lowe | scientificlanguage.com, Published in 2016, 121 pages
146. Robust Geometric Computation
     Kurt Mehlhorn, Chee Yap | New York University, Published in 2004
147. Algebraic and Geometric Surgery
     Andrew Ranicki | Oxford University Press, Published in 2002, 380 pages
148. Introduction to the Numerical Integration of PDEs
     B. Piette | University of Durham, Published in 2004, 89 pages
149. Elementary Differential Geometry
     Gilbert Weinstein | UAB, Published in 2009, 62 pages
150. Lectures on the Philosophy of Mathematics
     James Byrnie Shaw | Open Court Pub. Co, Published in 1918, 222 pages
151. Lectures on Holomorphic Curves in Symplectic and Contact Geometry
     Chris Wendl | arXiv, Published in 2010, 153 pages
152. Essentials of Statistics: Exercises
     David Brink | BookBoon, Published in 2008, 58 pages
153. An Introduction to Algebraic Number Theory
     F. Oggier | Nanyang Technological University, Published in 2010, 95 pages
154. The Theory of Numbers
     R. D. Carmichael | John Wiley & Sons, Published in 1914, 85 pages
155. Global Analysis: Functional Analysis Examples
     Leif Mejlbro | BookBoon, Published in 2009, 78 pages
156. n-Linear Algebra of Type II
     W. B. V. Kandasamy, F. Smarandache | InfoLearnQuest, Published in 2008, 231 pages
157. Lectures on Topics In The Theory of Infinite Groups
     B.H. Neumann | Tata Institute of Fundamental Research, Published in 1960, 200 pages
158. A Handbook of Statistics
     Darius Singpurwalla | Bookboon, Published in 2013, 79 pages
159. Notes on Noncommutative Geometry
     Igor Nikolaev | arXiv, Published in 2015, 309 pages
160. Experimental Design and Analysis
     Howard J. Seltman | Carnegie Mellon University, Published in 2012, 428 pages
161. Lectures on Numerical Methods in Bifurcation Problems
     H.B. Keller | Tata Institute Of Fundamental Research, Published in 1986, 140 pages
162. Fourier Series and Systems of Differential Equations and Eigenvalue Problems
     Leif Mejlbro | BookBoon, Published in 2007, 125 pages
163. Differential and Integral Equations: Boundary Value Problems and Adjoints
     S. Schwabik, M. Tvrdy, O. Vejvoda | Academia Praha, Published in 1979, 246 pages
164. Essentials of Statistics
     David Brink | BookBoon, Published in 2008, 102 pages
165. Computational Modeling and Mathematics Applied to the Physical Sciences
     | National Academy Press, Published in 1984, 108 pages
166. Stochastic Calculus
     Alan Bain | , Published in 2008, 99 pages
167. Geometry with an Introduction to Cosmic Topology
     Mike Hitchman | , Published in 2017, 177 pages
168. Algebraic Geometry
     J.S. Milne | , Published in 2008, 241 pages
169. Theory and Applications of Finite Groups
     G. A. Miller, H. F. Blichfeldt, L. E. Dickson | J. Wiley, Published in 1916, 424 pages
170. Shape Analysis, Lebesgue Integration and Absolute Continuity Connections
     Javier Bernal | arXiv.org, Published in 2019, 82 pages
171. Group theory for Maths, Physics and Chemistry
     Arjeh Cohen, Rosane Ushirobira, Jan Draisma | , Published in 2007, 93 pages
172. General Topology
     Pierre Schapira | Université Paris VI, Published in 2011, 78 pages
173. Proofs and Concepts: the fundamentals of abstract mathematics
     Dave Witte Morris, Joy Morris | University of Lethbridge, Published in 2009, 220 pages
174. Nonlinear Functional Analysis
     Gerald Teschl | University of Vienna, Published in 2009, 74 pages
175. College Algebra
     Richard Beveridge | , Published in 2018, 198 pages
176. Analytic Geometry
     L. P. Siceloff, G. Wentworth, D. E. Smith | Ginn and Company, Published in 1922, 296 pages
177. The Octonions
     John C. Baez | University of California, Published in 2001, 56 pages
178. Think Stats: Probability and Statistics for Programmers
     Allen B. Downey | Green Tea Press, Published in 2011, 122 pages
179. Mathematical Physics II
     Boris Dubrovin | SISSA, Published in 2008, 78 pages
180. Tunneling Through the Math Barrier
     William J. Meese | arXiv.org, Published in 2018, 187 pages
181. Smarandache Semirings, Semifields and Semivector Spaces
     W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 122 pages
182. Elementary Calculus
     Michael Corral | mecmath.net, Published in 2021, 348 pages
183. Statistics 1
     Keijo Ruohonen | Tampere University of Technology, Published in 2011, 97 pages
184. Transmutations and Applications: a survey
     Sergei M. Sitnik | arXiv, Published in 2010, 141 pages
185. Lectures on Discrete Subgroups of Lie Groups
     G.D. Mostow | Tata Institute of Fundamental Research, Published in 1969, 86 pages
186. Reform Calculus
     Marcel B. Finan | Arkansas Tech University, Published in 2004, 253 pages
187. Non-Euclidean Geometry
     Henry Manning | Ginn and Company, Published in 1901, 93 pages
188. A Gentle Introduction to Tensors
     Boaz Porat | Technion, Published in 2010, 87 pages
189. Linear Methods of Applied Mathematics
     Evans M. Harrell II, James V. Herod | , Published in 2000
190. Algorithmic Number Theory
     J.P. Buhler, P. Stevenhagen | Cambridge University Press, Published in 2008, 662 pages
191. Algorithms in Real Algebraic Geometry
     S. Basu, R. Pollack, M. Roy | Springer, Published in 2009, 672 pages
192. Elementary Number Theory
     William Edwin Clark | University of South Florida, Published in 2002, 129 pages
193. Logic For Everyone
     Robert A. Herrmann | , Published in 2006, 124 pages
194. Applied Finite Mathematics
     Rupinder Sekhon | Connexions, Published in 2011, 347 pages
195. Ends of Complexes
     Bruce Hughes, Andrew Ranicki | Cambridge University Press, Published in 2008, 375 pages
196. Formal Logic
     | Wikibooks, Published in 2009
197. A Cultural Paradox: Fun in Mathematics
     Jeff Zilahy | Feedbooks, Published in 2010, 75 pages
198. Notes on Differential Equations
     Bob Terrell | , Published in 2005, 99 pages
199. Mathematical Omnibus: Thirty Lectures on Classic Mathematics
     Dmitry Fuchs, Sergei Tabachnikov | American Mathematical Society, Published in 2007, 465 pages
200. Introduction to the Elementary Functions
     Raymond Benedict McClenon | Ginn and company, Published in 1918, 244 pages
201. Numerical Analysis I
     Mark Embree | Rice University, Published in 2012, 207 pages
202. Intermediate Maths for Chemists
     J. E. Parker | Bookboon, Published in 2013, 106 pages
203. Knot Invariants and Higher Representation Theory
     Ben Webster | arXiv, Published in 2013, 87 pages
204. Difference Equations to Differential Equations - An introduction to calculus
     Dan Sloughter | , Published in 2000, 599 pages
205. Mathematical Recreations and Essays
     W. W. Rouse Ball | Macmillan, Published in 1914, 506 pages
206. Fractional Dynamics
     Carlo Cattani, et al. | De Gruyter Open Ltd, Published in 2016, 408 pages
207. Real Numbers and Fascinating Fractions
     N. M. Beskin | , Published in 1986
208. Dynamical Systems and Chaos
     Evans M. Harrell II | , Published in 2000
209. Galois Groups and Fundamental Groups
     David Meredith | San Francisco State University, Published in 1999, 89 pages
210. CDBooK: Introduction to Vassiliev Knot invariants
     S.Chmutov, S.Duzhin, J.Mostovoy | Ohio State Universit, Published in 2009, 460 pages
211. Basic Algebra
     Anthony W. Knapp | , Published in 2016, 762 pages
212. The Nature of Mathematics
     Philip E. B. Jourdain | T. C. & E. C. Jack, Published in 1919, 136 pages
213. The Basics of Financial Mathematics
     Richard F. Bass | , Published in 2003, 106 pages
214. Abstract Algebra I
     Marcel B. Finan | Arkansas Tech University, Published in 2004
215. Measure Theory in Non-Smooth Spaces
     Nicola Gigli | De Gruyter Open, Published in 2017, 346 pages
216. Stochastic Processes
     David Nualart | The University of Kansas, Published in 2017, 82 pages
217. Proof in Mathematics: An Introduction
     James Franklin, Albert Daoud | Kew Books, Published in 2011, 104 pages
218. Dynamical Systems: Analytical and Computational Techniques
     Mahmut Reyhanoglu | InTech, Published in 2017, 272 pages
219. Lectures on Logarithmic Algebraic Geometry
     Arthur Ogus | University of California, Berkeley, Published in 2006, 255 pages
220. Applied Probability
     Paul E Pfeiffer | Connexions, Published in 2008, 634 pages
221. Introduction to Topology
     Alex Kuronya | , Published in 2010, 102 pages
222. Encyclopaedia of Mathematics
     Michiel Hazewinkel | Springer, Published in 2011
223. The Chaos Hypertextbook
     Glenn Elert | , Published in 2007
224. Complex Manifolds
     Julius Ross | Stanford University, Published in 2014, 119 pages
225. An Introduction to Nonassociative Algebras
     Richard D. Schafer | Project Gutenberg, Published in 2008, 81 pages
226. A Course of Modern Analysis
     E. T. Whittaker, G. N. Watson | Cambridge University Press, Published in 1920, 608 pages
227. Statistics Beyond the Absolute Basics
     Ivan Lowe | scientificlanguage.com, Published in 2018, 182 pages
228. Discrete Mathematics: An Open Introduction
     Oscar Levin | University of Northern Colorado, Published in 2017, 345 pages
229. Voting, Arbitration & Fair Division: Mathematics of Social Choice
     Marcus Pivato | Trent University, Published in 2007, 181 pages
230. Basic Probability Theory
     Robert B. Ash | Dover Publications, Published in 2008, 352 pages
231. Jacobi Operators and Complete Integrable Nonlinear Lattices
     Gerald Teschl | American Mathematical Society, Published in 1999, 369 pages
232. Euclid's Elements of Geometry
     J.L. Heiberg, R. Fitzpatrick | , Published in 2008, 545 pages
233. Multivector Differential Calculus
     Eckhard Hitzer | arXiv, Published in 2013, 43 pages
234. Higher Mathematics for Engineers and Physicists
     Ivan S. Sokolnikoff | McGraw Hill, Published in 1941, 537 pages
235. Revealing Statistical Principles
     J.K. Lindsey | Hodder Education Publishers, Published in 1999, 225 pages
236. Boundless Algebra
     | Lumen Learning, Published in 2018, 439 pages
237. Optimization and Dynamical Systems
     U. Helmke, J. B. Moore | Springer, Published in 1996, 414 pages
238. Algebraic General Topology
     Victor Porton | Mathematics21.org, Published in 2015, 349 pages
239. Popular Mathematics
     Robert Mudie | Orr and Smith, Published in 1836, 523 pages
240. An Introduction to Set Theory
     William A. R. Weiss | University of Toronto, Published in 2008, 119 pages
241. An Introduction to Mathematical Reasoning
     Peter J. Eccles | Cambridge University Press, Published in 2007, 364 pages
242. A Second Course in Elementary Ordinary Differential Equations
     Marcel B. Finan | Arkansas Tech University, Published in 2006, 201 pages
243. Introduction to Twisted Commutative Algebras
     Steven V Sam, Andrew Snowden | arXiv, Published in 2012, 56 pages
244. Linear Mathematics In Infinite Dimensions
     U. H. Gerlach | The Ohio State University, Published in 2015, 507 pages
245. 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
246. Lectures on Singular Stochastic PDEs
     M. Gubinelli, N. Perkowski | arXiv, Published in 2015, 67 pages
247. Category Theory
     | Wikibooks, Published in 2010
248. On Lie Algebras Of Prime Characteristic
     George B. Seligman | American Mathematical Society, Published in 1956, 93 pages
249. Lectures on Representation Theory and Invariant Theory
     William Crawley-Boevey | University of Leeds, Published in 1990, 77 pages
250. Intuitive Infinitesimal Calculus
     Viktor Blasjo | Intellectual Mathematics, Published in 2015, 98 pages
251. Mathematics and Physical Science in Classical Antiquity
     J. L. Heiberg | Oxford University Press, Published in 1922, 115 pages
252. A Text-Book of Geometry
     G. A. Wentworth | Ginn & Company, Published in 1898, 264 pages
253. Advanced Geometry for High Schools: Synthetic and Analytical
     A.H. McDougall | Copp, Clark, Published in 1919, 236 pages
254. The Contraction Mapping Principle and Some Applications
     Robert M. Brooks, Klaus Schmitt | American Mathematical Society, Published in 2009, 90 pages
255. Complex Analytic and Differential Geometry
     Jean-Pierre Demailly | Universite de Grenoble, Published in 2007, 571 pages
256. Introduction to Stochastic Analysis
     Michael Roeckner | Universitaet Bielefeld, Published in 2011, 98 pages
257. Art Gallery Theorems and Algorithms
     Joseph O'Rourke | Oxford University Press, Published in 1987, 296 pages
258. Circulants
     Alun Wyn-jones | , Published in 2008, 149 pages
259. Finite Rank Torsion Free Modules Over Dedekind Domains
     E. Lee Lady | University of Hawaii, Published in 1998
260. Real Analysis
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