Digital library
Textbooks, references and open learning resources.

External
Think Python 2ed.
Allen B. Downey · Olin College
In the contents: 1.04: Arithmetic operators · 1.05: Values and types · 1.06: Formal and natural languages

External
Contemporary Mathematics
OpenStax · OpenStax
In the contents: 1.01: Basic Set Concepts · 1.03: Understanding Venn Diagrams · 2.01: Statements and Quantifiers

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A First Course in Linear Algebra
Ken Kuttler · Brigham Young University
In the contents: 1.05: Rank and Homogeneous Systems · 2.01: Matrix Arithmetic · 2.06: The Identity and Inverses

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Complex Variables with Applications
Jeremy Orloff · Massachusetts Institute of Technology
In the contents: 01: Complex Algebra and the Complex Plane · 1.03: Terminology and Basic Arithmetic · 1.10: Concise summary of branches and branch cuts

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MATH 2150: Higher Arithmetic
Pamini Thangarajah · Mount Royal University
In the contents: 0.1: Basics · 0.3: Proof Do's and Dont's · 0.4: Egyptian Multiplication and Division (optional)

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Mathematical Reasoning
Pamini Thangarajah · Mount Royal University
In the contents: 1: Basic Language of Mathematics · 1.0 : Introduction to the Basic Language of Mathematics · 1.E: Basic Language of Mathematics (Exercises)

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Fundamentals of Matrix Algebra
Gregory Hartman · Virginia Military Institute
In the contents: 1.03: Elementary Row Operations and Gaussian Elimination · 1.04: Existence and Uniqueness of Solutions · 02: Matrix Arithmetic

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Math 287 Differential Equations and Linear Algebra
SeanS Smith · Santa Ana College
In the contents: 2.05: Rank and Homogeneous Systems · 3.01: Matrix Arithmetic · 3.06: The Identity and Inverses

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Math, Numerics, and Programming (for Mechanical Engineers)
Masayuki Yano, James Douglass Penn, George Konidaris, & Anthony T Patera · Massachusetts Institute of Technology
In the contents: 04: Elements of a Program and Matlab Basics · 4.01: Computer Architecture and Computer Programming · 4.02: Data Types (and Classes)

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Proofs and Concepts - The Fundamentals of Abstract Mathematics
Dave Witte Morris & Joy Morris · University of Lethbridge
In the contents: 1.01: Assertions deductions and validity · 1.06: Tautologies and contradictions · 1.08: Converse and contrapositive

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CPSI10003 Microcomputer Applications 1 - Microsoft Excel
LueCrecy Ragan · Arkansas State University-Beebe
In the contents: 1.1.04: Text and Numbers in Microsoft Excel · 1.1.05: Headers Footers and Page Layout · 1.1.06: Renaming and Organizing Worksheets

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College Algebra
Jay Abramson · Arizona State University
In the contents: 1.6.01: Models and Applications · 1.07: Radicals and Rational Expressions · 1.08: The Rectangular Coordinate Systems and Graphs

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Math 384: Foundations for Calculus
Roy Simpson · Cosumnes River College
In the contents: 1.01: Functions and Function Notation · 1.1.01: Resources and Key Concepts · 1.02: Domain and Range

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CLP-1 Differential Calculus
Joel Feldman, Andrew Rechnitzer & Elyse Yeager · University of British Columbia
In the contents: 01: The basics · 2.01: Drawing Tangents and a First Limit · 2.02: Another Limit and Computing Velocity

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Discrete Mathematics for Computer Science
Mark A. Fitch · University of Alaska Anchorage
In the contents: 01: Basics · 2.04: Mathematical Proof · 3.03: Modulo Arithmetic

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Think Java - How to Think Like a Computer Scientist
Allen B. Downey · lin College
In the contents: 2.04: Getters and Setters · 2.09: Pure Methods and Modifiers · 5.01: Decks and Hands

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MAT 04C Linear Algebra
Zoya Kravets · Mission College
In the contents: 1.05: Vector Equations and Spans · 2.01: Matrix Arithmetic · 2.06: The Identity and Inverses

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MGT 235: Introductory Business Statistics
Gettysburg College · LibreTexts
In the contents: 01: Sampling and Data · 1.02: Definitions of Statistics Probability and Key Terms · 1.03: Data Sampling and Variation in Data and Sampling

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PreAlgebra
Davis Arnold · College of the Redwoods
In the contents: 1.02: Adding and Subtracting Whole Numbers · 1.03: Multiplication and Division of Whole Numbers · 1.06: Solving Equations by Addition and Subtraction