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. Linear Algebra: Theorems and Applications
   Hassan Abid Yasser (ed.) | InTech, Published in 2012, 250 pages
2. Applied Nonparametric Regression
   Wolfgang Härdle | Cambridge University Press, Published in 1992, 433 pages
3. Algebraic Curves: an Introduction to Algebraic Geometry
   William Fulton | Benjamin, Published in 1969, 129 pages
4. The Calculus for Engineers and Physicists
   Robert H. Smith | Griffin, Published in 1908, 268 pages
5. Tensor Analysis
   Edward Nelson | Princeton Univ Pr, Published in 1974, 138 pages
6. Algebraic L-theory and Topological Manifolds
   A. A. Ranicki | Cambridge University Press, Published in 2011, 365 pages
7. Chance and Luck
   Richard A. Proctor | Longmans, Green, and Co., Published in 1887, 164 pages
8. Abstract and Concrete Categories: The Joy of Cats
   Jiri Adamek, Horst Herrlich, George Strecker | John Wiley & Sons, Published in 1990, 496 pages
9. Geometry, Topology and Physics
   Maximilian Kreuzer | Technische Universitat Wien, Published in 2010, 69 pages
10. Lectures on Topics in Algebraic K-Theory
    Hyman Bass | Tata Institute of Fundamental Research, Published in 1967, 138 pages
11. Proof, Sets, and Logic
    M. Randall Holmes | Boise State University, Published in 2009, 207 pages
12. Descriptive Set Theory
    Yiannis N. Moschovakis | American Mathematical Society, Published in 2009, 516 pages
13. Noncommutative Geometry, Quantum Fields and Motives
    Alain Connes, Matilde Marcolli | American Mathematical Society, Published in 2008, 808 pages
14. Floer Homology, Gauge Theory, and Low Dimensional Topology
    David Ellwood, at al. | American Mathematical Society, Published in 2006, 314 pages
15. Category Theory Lecture Notes
    Michael Barr, Charles Wells | , Published in 1999, 133 pages
16. Integrate Your Brain: How To Do Calculus In Your Head
    Aaron Maxwell | Lulu.com, Published in 2006, 51 pages
17. Stochastic Integration and Stochastic Differential Equations
    Klaus Bichteler | University of Texas, Published in 2002, 643 pages
18. An Invitation to General Algebra and Universal Constructions
    George M. Bergman | Henry Helson, Published in 1998, 398 pages
19. Lectures in Basic Computational Numerical Analysis
    James M. McDonough | University of Kentucky, Published in 2001, 166 pages
20. College Algebra
    Paul Dawkins | Lamar University, Published in 2011, 352 pages
21. Mathematics for the Physical Sciences
    Herbert S Wilf | Dover Publications, Published in 1962, 298 pages
22. Geometry Formulas and Facts
    Silvio Levy | CRC Press, Published in 1995
23. scl
    Danny Calegari | Mathematical Society of Japan, Published in 2009, 218 pages
24. Causal Inference
    Miguel A. Hernan, James M. Robins | Chapman & Hall/CRC, Published in 2015, 352 pages
25. Basic Linear Algebra
    Andrew Baker | University of Glasgow, Published in 2008, 73 pages
26. Probability: Theory and Examples
    Rick Durrett | Cambridge University Press, Published in 2010, 372 pages
27. Applied Mathematics by Example
    Jeremy Pickles | BookBoon, Published in 2010, 164 pages
28. Riemannian Geometry
    Ilkka Holopainen, Tuomas Sahlsten | , Published in 2023, 118 pages
29. Numerical Solutions of Engineering Problems
    K. Nandakumar | University of Alberta, Published in 1998, 193 pages
30. Strange Attractors: Creating Patterns in Chaos
    Julien C. Sprott | M & T Books, Published in 2000, 591 pages
31. Linear Programming
    Jim Burke | University of Washington, Published in 2012
32. Complex Analysis
    C. McMullen | Harvard University, Published in 2010, 106 pages
33. Practical Foundations of Mathematics
    Paul Taylor | Cambridge University Press, Published in 1999, 588 pages
34. Algebraic Logic
    H. Andreka, I. Nemeti, I. Sain | , Published in 2003, 129 pages
35. Descriptive Set Theory
    David Marker | University of Illinois at Chicago, Published in 2002, 105 pages
36. Introduction to Characteritic Classes and Index Theory
    Jean-Pierre Schneiders | Universidade de Lisboa, Published in 2000, 236 pages
37. Practical Trigonometry
    H. C. Playne | E. Arnold, Published in 1906, 188 pages
38. Higher Operads, Higher Categories
    Tom Leinster | arXiv, Published in 2003, 410 pages
39. Ordinary Differential Equations: A Systems Approach
    Bruce P. Conrad | , Published in 2010, 1125 pages
40. A Course of Pure Geometry: Properties of the Conic Sections
    E.H. Askwith | Cambridge University Press, Published in 1917, 314 pages
41. The Manual of Mathematical Magic
    Peter McOwan | Queen Mary, University of London, Published in 2010, 96 pages
42. Topics in Random Matrix Theory
    Terence Tao | , Published in 2011, 340 pages
43. Lectures on Birational Geometry
    Caucher Birkar | arXiv, Published in 2012, 85 pages
44. Langlands Correspondence for Loop Groups
    Edward Frenkel | Cambridge University Press, Published in 2007, 393 pages
45. Higher-Dimensional Categories: an illustrated guide book
    Eugenia Cheng, Aaron Lauda | University of Sheffield, Published in 2004, 182 pages
46. Lectures on the Theory of Algebraic Functions of One Variable
    M. Deuring | Tata Institute of Fundamental Research, Published in 1959, 154 pages
47. Elements of Analytical Geometry of Two Dimensions
    M. Briot, M. Bouquet | Werner school book company, Published in 1896, 602 pages
48. Harmonic Function Theory
    Sheldon Axler, Paul Bourdon, Wade Ramey | Springer, Published in 2001, 270 pages
49. A Primer of Commutative Algebra
    J.S. Milne | , Published in 2011, 75 pages
50. An Infinitely Large Napkin
    Evan Chen | GitHub, Published in 2024, 1036 pages
51. Basic Probability Theory
    Robert B. Ash | Dover Publications, Published in 2008, 352 pages
52. Notes on Discrete Mathematics
    Miguel A. Lerma | , Published in 2005, 154 pages
53. Combinatorial and Computational Geometry
    J. E. Goodman, J. Pach, E. Welzl | Cambridge University Press, Published in 2007, 616 pages
54. On Some of Smarandache's Problems
    Krassimir Atanassov | Erhus Univ Pr, Published in 1999, 89 pages
55. A Problem-Solving Approach to College Algebra
    Marcel B. Finan | Arkansas Tech University, Published in 2002, 92 pages
56. Groups and Semigroups: Connections and Contrasts
    John Meakin | University of Nebraska-Lincoln, Published in 2005, 40 pages
57. An Introduction to Gaussian Geometry
    Sigmundur Gudmundsson | Lund University, Published in 2009, 75 pages
58. Elements of the Differential and Integral Calculus
    William Anthony Granville | Ginn, Published in 1911, 493 pages
59. The Smarandache Function
    C. Dumitrescu, V. Seleacu | Erhus University Press, Published in 1996, 137 pages
60. Lectures on Siegel Modular Forms and Representation by Quadratic Forms
    Y. Kitaoka | Tata Institute of Fundamental Research, Published in 1986, 197 pages
61. Convex Optimization
    Stephen Boyd, Lieven Vandenberghe | Cambridge University Press, Published in 2004, 730 pages
62. First Book in General Mathematics
    Frank S. Pugh | P.P. Simmons, Published in 1917, 285 pages
63. Combinatorial Theory
    Gian-Carlo Rota | , Published in 1998, 414 pages
64. Determinantal Rings
    Winfried Bruns, Udo Vetter | Springer, Published in 1988, 244 pages
65. Lists, Decisions, and Graphs
    Edward A. Bender, S. Gill Williamson | University of California, San Diego, Published in 2010, 261 pages
66. Intermediate Maths for Chemists
    J. E. Parker | Bookboon, Published in 2013, 106 pages
67. High School Algebra
    J.T. Crawford | The Macmillan Company, Published in 1916, 428 pages
68. Graph Theory Lessons
    Christopher P. Mawata | Math Cove, Published in 2018, 384 pages
69. Differential Geometry Course Notes
    Richard Koch | University of Oregon, Published in 2005, 188 pages
70. The Theory of Matrices
    C.C. MacDuffee | Chelsea, Published in 1956, 110 pages
71. Linear Algebra
    Jonathan Gleason | University of California, Published in 2018, 681 pages
72. Linear Algebra
    Paul Dawkins | Lamar University, Published in 2011, 331 pages
73. Notes on Basic 3-Manifold Topology
    Allen Hatcher | , Published in 2000, 61 pages
74. Model Theory
    C. Ward Henson | University of South Carolina, Published in 2010, 122 pages
75. Smarandache Rings
    W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 222 pages
76. Statistics: Methods and Applications
    Thomas Hill, Paul Lewicki | StatSoft, Inc., Published in 2005, 800 pages
77. A Reform Approach to Business Calculus
    Marcel B. Finan | Arkansas Tech University, Published in 2003, 150 pages
78. Lectures on Differential Topology
    Riccardo Benedetti | arXiv.org, Published in 2019, 416 pages
79. Curves and Surfaces in Geometric Modeling: Theory and Algorithms
    Jean Gallier | Morgan Kaufmann, Published in 1999, 502 pages
80. A First Course in Complex Analysis
    M. Beck, G. Marchesi, D. Pixton | San Francisco State University, Published in 2012, 127 pages
81. Six Septembers: Mathematics for the Humanist
    Patrick Juola, Stephen Ramsay | Zea Books, Published in 2017, 433 pages
82. Linear Methods of Applied Mathematics
    Evans M. Harrell II, James V. Herod | , Published in 2000
83. Riemannian Geometry
    Richard L. Bishop | arXiv, Published in 2013, 67 pages
84. On 2D Inverse Problems
    | Wikibooks, Published in 2013
85. An Introduction to the Theory of Numbers
    Leo Moser | The Trillia Group, Published in 2007, 95 pages
86. Category Theory Lecture Notes
    Daniele Turi | University of Edinburgh, Published in 2001, 61 pages
87. Elementary Number Theory
    W W L Chen | Macquarie University, Published in 2003, 98 pages
88. A Geometric Approach to Differential Forms
    David Bachman | arXiv, Published in 2003, 106 pages
89. Lectures on Noise Sensitivity and Percolation
    Christophe Garban, Jeffrey E. Steif | arXiv, Published in 2011, 150 pages
90. Algebraic Methods
    F. Oggier | Nanyang Technological University, Published in 2011, 199 pages
91. High-dimensional Knot Theory
    Andrew Ranicki | Springer, Published in 1998, 693 pages
92. Mathematical Methods
    Mihir Sen, Joseph M. Powers | University of Notre Dame, Published in 2010, 432 pages
93. Analytical Geometry for Beginners
    Alfred Baker | W. J. Gage, Published in 1905, 234 pages
94. Examples of differential equations, with rules for their solution
    George A. Osborne | Boston, Ginn & Company, Published in 1899, 76 pages
95. Theory and Applications of Lattice Point Methods for Binomial Ideals
    Ezra Miller | arXiv, Published in 2010, 57 pages
96. Applied Linear Algebra in Action
    Vasilios N. Katsikis | InTech, Published in 2016, 172 pages
97. An Introduction to K-theory and Cyclic Cohomology
    Jacek Brodzki | arXiv, Published in 1996, 115 pages
98. An elementary treatise on Fourier's series and spherical, cylindrical, and ellipsoidal harmonics
    William Elwood Byerly | Ginn and company, Published in 1893, 309 pages
99. Random Differential Equations in Scientific Computing
    Tobias Neckel, Florian Rupp | De Gruyter Open, Published in 2013, 650 pages
100. Groups as Graphs
     W. B. V. Kandasamy, F. Smarandache | CuArt, Published in 2009, 170 pages
101. Fractional Calculus: Theory and Applications
     Francesco Mainardi (ed.) | MDPI AG, Published in 2018, 210 pages
102. Deformations of Algebras in Noncommutative Geometry
     Travis Schedler | arXiv, Published in 2015, 120 pages
103. Differential Equations
     Paul Dawkins | Lamar University, Published in 2011, 504 pages
104. Geometry of Numbers with Applications to Number Theory
     Pete L. Clark | University of Georgia, Published in 2015, 159 pages
105. Infinite-dimensional Lie Algebras
     Iain Gordon | University of Edinburgh, Published in 2009, 55 pages
106. Magic Squares and Cubes
     W. S. Andrews | Open Court Publishing Company, Published in 1917, 428 pages
107. Periodic Solutions for Evolution Equations
     Mihai Bostan | American Mathematical Society, Published in 2002, 41 pages
108. Scientific Computing
     Jeffrey R. Chasnov | Harvey Mudd College, Published in 2013, 152 pages
109. Intermediate Algebra
     Donna Gaudet, et al. | Scottsdale Community College, Published in 2013, 480 pages
110. Collections of Problems on Smarandache Notions
     Charles Ashbacher | Erhus University Press, Published in 1996, 75 pages
111. Continuous Groups Of Transformations
     Luther Pfahler Eisenhart | Princeton University Press, Published in 1933, 319 pages
112. Congruence Lattices of Finite Algebras
     William DeMeo | arXiv, Published in 2012, 130 pages
113. Smarandache Loops
     W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 129 pages
114. The Air Force Brain Booster Book
     John C. Sparks | Air Force Publication, Published in 2006, 58 pages
115. Lectures on the Philosophy of Mathematics
     James Byrnie Shaw | Open Court Pub. Co, Published in 1918, 222 pages
116. Notes on Automorphic Functions
     Anders Thorup | Kobenhavns Universitet, Published in 1995, 186 pages
117. Virtual Polyhedra: The Encyclopedia of Polyhedra
     George W. Hart | , Published in 2000
118. Mathematical Principles of Dynamic Systems and the Foundations of Quantum Physics
     Eric Tesse | arXiv, Published in 2012, 88 pages
119. Probability Theory and Stochastic Processes with Applications
     Oliver Knill | Overseas Press, Published in 2009, 382 pages
120. Enumerative Combinatorics: Volume 1
     Richard P. Stanley | MIT, Published in 2011, 725 pages
121. The Geometry and Topology of Three-Manifolds
     William P Thurston | Mathematical Sciences Research Institute, Published in 2002, 502 pages
122. Set Theory
     Gary Hardegree | UMass Amherst, Published in 2003
123. Non-Euclidean Geometry
     Henry Manning | Ginn and Company, Published in 1901, 93 pages
124. Multivariate Statistics: Concepts, Models, and Applications
     David W. Stockburger | Missouri State University, Published in 2001
125. Temporal Networks
     Petter Holme, Jari Saramäki | arXiv, Published in 2011, 25 pages
126. Knot Diagrammatics
     Louis H. Kauffman | arXiv, Published in 2004, 107 pages
127. Multivariable and Vector Analysis
     W W L Chen | Macquarie University, Published in 2008, 203 pages
128. Multivariable Calculus
     Jerry Shurman | Reed College, Published in 2010, 523 pages
129. Introduction to Analysis
     Irena Swanson | Purdue University, Published in 2020, 353 pages
130. Math Alive
     Ingrid Daubechies, Shannon Hughes | Princeton University, Published in 2008, 454 pages
131. Lectures On Old And New Results On Algebraic Curves
     P. Samuel | Tata Institute Of Fundamental Research, Published in 1966, 99 pages
132. Noncommutative Localization in Algebra and Topology
     Andrew Ranicki | Cambridge University Press, Published in 2002, 323 pages
133. Algebraic and Geometric Methods in Enumerative Combinatorics
     Federico Ardila | arXiv, Published in 2014, 143 pages
134. Lectures On Irregularities Of Distribution
     Wolfgang M. Schmidt | Tata Institute of Fundamental Research, Published in 1977, 137 pages
135. Introductory Statistics
     T. H. Wonnacott, R. J. Wonnacott | Wiley, Published in 1969, 416 pages
136. Lectures on Random Polymers
     F. Caravenna, F. den Hollander, N. Petrelis | arXiv, Published in 2011, 74 pages
137. Group Theory
     Ferdi Aryasetiawan | University of Lund, Published in 1997, 140 pages
138. A Gentle Introduction to the Art of Mathematics
     Joseph Fields | Southern Connecticut State University, Published in 2009, 428 pages
139. Arithmetic for Engineers
     Charles B. Clapham | Chapman & Hall, Published in 1925, 526 pages
140. Introduction to Tensor Calculus
     Taha Sochi | arXiv, Published in 2016, 83 pages
141. On Advanced Analytic Number Theory
     C.L. Siegel | Tata Institute of Fundamental Research, Published in 1961, 241 pages
142. Algebraic Geometry
     J.S. Milne | , Published in 2008, 241 pages
143. A Review of Algebra
     Romeyn Henry Rivenburg | American Book Company, Published in 1914, 80 pages
144. Calculus Made Easy
     Silvanus P. Thompson | The MacMillan Company, Published in 1914, 315 pages
145. Elementary Illustrations of the Differential and Integral Calculus
     Augustus De Morgan | The Open Court Pub. Co., Published in 1899, 194 pages
146. Kähler-Einstein metrics: Old and New
     Daniele Angella, Cristiano Spotti | arXiv.org, Published in 2017, 48 pages
147. A Practical Guide to Robust Optimization
     Bram L. Gorissen, Ihsan Yanıkoğlu, Dick den Hertog | arXiv, Published in 2015, 29 pages
148. Vector Calculus
     Michael Corral | Schoolcraft College, Published in 2008, 222 pages
149. An Introduction to Mathematical Logic
     Wolfram Pohlers, Thomas Glass | , Published in 1992, 229 pages
150. Lectures on Forms of Higher Degree
     J.I. Igusa | Tata Institute of Fundamental Research, Published in 1978, 169 pages
151. An Episodic History of Mathematics
     Steven G. Krantz | Mathematical Association of America, Published in 2006, 483 pages
152. Partial Differential Equations: An Introduction
     A.D.R. Choudary, Saima Parveen, Constantin Varsan | arXiv, Published in 2010, 208 pages
153. Integral Calculus
     Leah Edelstein-Keshet | University of British Columbia, Published in 2010, 267 pages
154. Elliptic Curves over Function Fields
     Douglas Ulmer | arXiv, Published in 2011, 72 pages
155. An Introduction to Determinants
     William Thomson | , Published in 1882, 122 pages
156. Basic Real Analysis
     Anthony W. Knapp | Birkhäuser, Published in 2016, 840 pages
157. Comparison Geometry
     Karsten Grove, Peter Petersen | Cambridge University Press, Published in 1997, 262 pages
158. Business Mathematics: A Textbook
     Edward I. Edgerton, Wallace E. Bartholomew | The Ronald Press Co., Published in 1921, 331 pages
159. Supplementary Algebra
     Robert L. Short | D.C. Heath & Co., Published in 1905, 60 pages
160. Music: A Mathematical Offering
     Dave Benson | Cambridge University Press, Published in 2006, 530 pages
161. Introduction to Probability
     Leif Mejlbro | BookBoon, Published in 2009, 61 pages
162. Graph Theory With Applications
     J.A. Bondy and U.S.R. Murty | Elsevier Science Ltd, Published in 1976, 270 pages
163. Uncertainty Theory
     Baoding Liu | Tsinghua University, Published in 2018, 501 pages
164. Digraphs: Theory, Algorithms and Applications
     Jorgen Bang-Jensen, Gregory Gutin | Springer, Published in 2002, 772 pages
165. Advanced High School Statistics
     David M Diez, et al. | OpenIntro, Published in 2017, 458 pages
166. Vector Calculus, with Applications to Physics
     James Byrnie Shaw | D. Van Nostrand company, Published in 1922, 338 pages
167. Complex Manifolds and Hermitian Differential Geometry
     Andrew D. Hwang | University of Toronto, Published in 1997, 113 pages
168. Semi-classical analysis
     Victor Guillemin, Shlomo Sternberg | Harvard University, Published in 2012, 488 pages
169. Linear Algebra: Course
     Peter Saveliev | , Published in 2012, 242 pages
170. Fundamentals of Linear Algebra
     Marcel B. Finan | Arkansas Tech University, Published in 2001, 196 pages
171. Computations in Algebraic Geometry with Macaulay 2
     D. Eisenbud, D. Grayson, M. Stillman, B. Sturmfels | Springer, Published in 2001, 343 pages
172. Lectures on Disintegration of Measures
     L. Schwartz | Tata Institute of Fundamental Research, Published in 1976, 139 pages
173. Abstract Algebra
     John A. Beachy, William D. Blair | Waveland, Published in 2006, 506 pages
174. Calculus and Linear Algebra. Vol. 1
     Wilfred Kaplan, Donald J. Lewis | University of Michigan Library, Published in 2007, 712 pages
175. Symmetry Measures on Complex Networks
     Angel Garrido (ed.) | MDPI AG, Published in 2017, 510 pages
176. Introduction to Mathematical Analysis
     B. Lafferriere, G. Lafferriere, N. Mau Nam | Portland State University Library, Published in 2015, 141 pages
177. Introduction to Algebraic Number Theory
     William Stein | University of Washington, Published in 2005, 140 pages
178. Dave's Short Course in Trigonometry
     David E. Joyce | Clark University, Published in 2002, 156 pages
179. Mathematics and Group Theory in Music
     Athanase Papadopoulos | arXiv, Published in 2014, 33 pages
180. Euclid's Parallel Postulate: Its Nature, Validity and Place in Geometrical Systems
     John William Withers | Open Court Publishing Co., Published in 1904, 214 pages
181. Introduction to Numerical Methods and Matlab Programming for Engineers
     Todd Young, Martin J. Mohlenkamp | Ohio University, Published in 2017, 182 pages
182. A Century of Mathematics in America
     Peter Duren, Richard A. Askey | American Mathematical Society, Published in 1988
183. The Elements Of Non-Euclidean Geometry
     Julian Lowell Coolidge | Oxford At The Clarendon Press, Published in 1909, 282 pages
184. Techniques of Applied Mathematics
     Andrew Fowler | University of Oxford, Published in 2005, 141 pages
185. Essentials of Statistics
     David Brink | BookBoon, Published in 2008, 102 pages
186. Introduction to Projective Varieties
     Enrique Arrondo | Universidad Complutense de Madrid, Published in 2007, 142 pages
187. Calculus II
     Paul Dawkins | Lamar University, Published in 2011, 380 pages
188. Revealing Statistical Principles
     J.K. Lindsey | Hodder Education Publishers, Published in 1999, 225 pages
189. Complex Manifolds
     Julius Ross | Stanford University, Published in 2014, 119 pages
190. Notes on Optimization
     Pravin Varaiya | Van Nostrand, Published in 1972, 140 pages
191. Recreations in Mathematics
     H E. Licks | D. Van Nostrand Company, Published in 1917, 163 pages
192. Super Linear Algebra
     W. B. V. Kandasamy, F. Smarandache | InfoQuest, Published in 2008, 293 pages
193. Lectures on Fundamental Concepts of Algebra and Geometry
     John Wesley Young | Macmillan and co., Published in 1917, 264 pages
194. Intuitionistic Logic
     Nick Bezhanishvili, Dick de Jongh | Universiteit van Amsterdam, Published in 2010, 57 pages
195. Computational Mathematics for Differential Equations
     N. V. Kopchenova, I. A. Maron | , Published in 1975
196. Functional Analysis with Applications
     Palle Jorgensen, Feng Tian | arXiv, Published in 2014, 338 pages
197. Integral Operators
     Leif Mejlbro | BookBoon, Published in 2009, 66 pages
198. Basic Concepts in Modal Logic
     Edward N. Zalta | Stanford University, Published in 2011, 91 pages
199. Riemannian Geometry: Definitions, Pictures, and Results
     Adam Marsh | arXiv, Published in 2014, 69 pages
200. Lectures on The Riemann Zeta-Function
     K. Chandrasekharan | Tata Institute of Fundamental Research, Published in 1953, 154 pages
201. Algorithmic Algebra
     Bhubaneswar Mishra | Courant Institute of Mathematical Sciences, Published in 1993, 425 pages
202. Theory and Applications of Finite Groups
     G. A. Miller, H. F. Blichfeldt, L. E. Dickson | J. Wiley, Published in 1916, 424 pages
203. Symplectic Reflection Algebras
     Gwyn Bellamy | arXiv, Published in 2012, 64 pages
204. Applied Probability
     Paul E Pfeiffer | Connexions, Published in 2008, 634 pages
205. Trigonometry for Beginners
     J. B. Lock | The MacMillan Company, Published in 1896, 236 pages
206. Categories and Homological Algebra
     Pierre Schapira | UPMC, Published in 2011, 125 pages
207. Advanced Calculus
     Lynn H. Loomis, Shlomo Sternberg | Jones and Bartlett Publishers, Published in 1989, 592 pages
208. Introduction to Applied Linear Algebra: Vectors, Matrices and Least Squares
     Stephen Boyd, Lieven Vandenberghe | Cambridge University Press, Published in 2018, 473 pages
209. An Algorithm for Constructing Lyapunov Functions
     Sigurdur Freyr Hafstein | , Published in 2007, 100 pages
210. Abstract Algebra: Theory and Applications
     Thomas Judson | Virginia Commonwealth University Mathematics, Published in 2009, 428 pages
211. Numerical Analysis I
     Mark Embree | Rice University, Published in 2012, 207 pages
212. Lectures on Topics in Analysis
     Raghavan Narasimhan | Tata Institute of Fundamental Research, Published in 1965, 205 pages
213. Elements of Applied Mathematics
     Cobb Herbert E. | Ginn and Company, Published in 1911, 292 pages
214. Street-Fighting Mathematics
     Sanjoy Mahajan | The MIT Press, Published in 2010, 153 pages
215. Practical Plane and Solid Geometry for Advanced Students
     J. Harrison, G.A. Baxandall | Macmillan, Published in 1899, 584 pages
216. Trigonometry
     Michael Corral | mecmath.net, Published in 2009, 174 pages
217. A Second Course in Elementary Ordinary Differential Equations
     Marcel B. Finan | Arkansas Tech University, Published in 2006, 201 pages
218. Tight and Taut Submanifolds
     Thomas E. Cecil, Shiing-shen Chern | Cambridge University Press, Published in 1997, 349 pages
219. Galois Theory
     Miles Reid | University of Warwick, Published in 2004, 89 pages
220. Geometry Unbound
     Kiran S. Kedlaya | , Published in 2006, 142 pages
221. The Handbook of Essential Mathematics
     John C. Sparks | Air Force Publication, Published in 2006, 205 pages
222. Spherical Trigonometry
     I. Todhunter | Macmillan and co, Published in 1886, 189 pages
223. Geometry with an Introduction to Cosmic Topology
     Mike Hitchman | , Published in 2017, 177 pages
224. The K-book: An introduction to algebraic K-theory
     Charles Weibel | Rutgers, Published in 2010
225. New Frontiers in Graph Theory
     Yagang Zhang (ed.) | InTech, Published in 2012, 526 pages
226. Banach Modules and Functors on Categories of Banach Spaces
     J. Cigler, V. Losert, P.W. Michor | Marcel Dekker Inc, Published in 1979, 297 pages
227. A First Course in Mathematics Concepts for Elementary School Teachers
     Marcel B. Finan | Arkansas Tech University, Published in 2006, 452 pages
228. A Course Of Differential Geometry
     John Edward Campbell | Clarendon Press, Published in 1926, 288 pages
229. Elementary Statistical Methods
     Christian Akrong Hesse | ResearchGate GmbH, Published in 2011, 83 pages
230. Encyclopedia of Dynamical Systems
     D. Anosov, at al. | Scholarpedia, Published in 2009
231. College Algebra
     Richard Beveridge | , Published in 2018, 198 pages
232. Convergence of Stochastic Processes
     D. Pollard | Springer, Published in 1984, 223 pages
233. Lecture notes on C*-algebras, Hilbert C*-modules, and quantum mechanics
     N.P. Landsman | arXiv, Published in 1998, 90 pages
234. C*-algebras
     John Erdos | King's College, London, Published in 2003, 51 pages
235. Lecture Notes on Free Probability
     Vladislav Kargin | arXiv, Published in 2013, 100 pages
236. Mirror Symmetry
     Cumrun Vafa, Eric Zaslow | American Mathematical Society, Published in 2003, 950 pages
237. Lectures on Discrete Subgroups of Lie Groups
     G.D. Mostow | Tata Institute of Fundamental Research, Published in 1969, 86 pages
238. Introduction to Graphs
     Alexander K. Hartmann, Martin Weigt | arXiv, Published in 2006, 45 pages
239. Transformations of Surfaces
     Luther Pfahler Eisenhart | Princeton University Press, Published in 1923, 371 pages
240. Recent Progress on the Random Conductance Model
     Marek Biskup | arXiv, Published in 2012, 80 pages
241. Handbook of Mathematics for Engineers
     E. V. Huntington, L. A. Fischer | McGraw Hill, Published in 1918, 212 pages
242. Essential Mathematics
     Franco Vivaldi | , Published in 2006, 74 pages
243. Lectures on Exterior Differential Systems
     M. Kuranishi | Tata Institute of Fundamental Research, Published in 1962, 117 pages
244. Computational Modeling and Mathematics Applied to the Physical Sciences
     | National Academy Press, Published in 1984, 108 pages
245. Introduction to the Elementary Functions
     Raymond Benedict McClenon | Ginn and company, Published in 1918, 244 pages
246. Numbers and Symbols: From Counting to Abstract Algebras
     Roy McWeeny | Learning Development Institute, Published in 2007, 53 pages
247. Probability and Mathematical Statistics
     Prasanna Sahoo | University of Louisville, Published in 2008, 703 pages
248. Quick Introduction to Tensor Analysis
     Ruslan Sharipov | Samizdat Press, Published in 2004, 47 pages
249. Relationships, Change and Mathematical Analysis
     Roy McWeeny | Learning Development Institute, Published in 2011, 94 pages
250. Proofs in Mathematics
     Alexander Bogomolny | Interactive Mathematics Miscellany and Puzzles, Published in 2013, 272 pages
251. Topological Groups: Yesterday, Today, Tomorrow
     Sidney A. Morris (ed.) | MDPI AG, Published in 2016, 230 pages
252. Extracting Information from Random Data
     Pawel J. Szablowski | arXiv, Published in 2016, 167 pages
253. The Craft of Fractional Modelling in Science and Engineering
     Jordan Hristov (ed.) | MDPI AG, Published in 2018, 140 pages
254. Endless Amusement
     | Lea and Blanchard, Published in 1847, 217 pages
255. Ergodic Optimization, Zero Temperature Limits and the Max-plus Algebra
     A. T. Baraviera, R. Leplaideur, A. O. Lopes | arXiv, Published in 2013, 106 pages
256. Logic for Computer Scientists
     Uli Furbach | Wikibooks, Published in 2010
257. APEX Calculus
     Gregory Hartman, et al. | APEXcalculus.com, Published in 2015, 874 pages
258. Discrete Structures
     Vladlen Koltun | Stanford University, Published in 2008, 89 pages
259. Amusements in Mathematics
     Henry Ernest Dudeney | Nelson, Published in 1917, 280 pages
260. Irrational Numbers and Their Representation by Sequences and Series
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