Digital library
Textbooks, references and open learning resources.

External
Elementary Trigonometry
Michael Corral · Schoolcraft College
This is a text on elementary trigonometry, designed for students who have completed courses in high-school algebra and geometry. Though designed for college students, it could also be used in high schools. The traditional topics are covered, but a more geometrical approach is taken than usual. Also, some numerical methods (e.g. the secant method for solving trigonometric equations) are discussed. A brief tutorial on using Gnuplot to graph trigonometric functions is included.

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Oregon Institute of Technology: CHE 202 General Chemistry II
Addie Clark · Oregon Institute of Technology
Electronic structure of atoms, periodic trends, chemical bonding, molecular geometry, intermolecular forces, phase transitions, and properties of solutions. Emphasis on engineering applications.

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General Chemistry Lab Manual Chem 1A Experiments
Divan Fard · Shasta College
This lab manual is designed to support the first semester of general chemistry. The experiments include Fun with Dimensional Analysis, Density of a Sucrose Solution, Percent Composition, Stoichiometry, Limiting Reactants, Reactions and Solubility, Titration of a Carbonated Beverage, Molar Mass of a Volatile Liquid, Calorimetry, Hess’s Law, Molecular Geometry, and a Lab Final.

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Math 372: College Algebra (Lecture Notes)
Roy Simpson · Cosumnes River College
This course provides a rigorous treatment of college-level algebra and its applications, focusing. Topics include polynomial, rational, radical, exponential, absolute value, and logarithmic functions, the graphs of these functions, and solving equations involving these functions; systems of equations; the theory of polynomial equations; analytic geometry including conics; sequences and series; and mathematical induction. Emphasis is given to analytical reasoning and problem-solving.

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Elementary Calculus 2e
Michael Corral · Schoolcraft College
In the contents: 07: Analytic Geometry and Plane Curves

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Mathematics for Game Developers
Denny Burzynski · College of Southern Nevada
In the contents: 3.07: The Cross Product- Geometry

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The Islamic World
SmartHistory of Art · Smarthistory
In the contents: 1.08: The complex geometry of Islamic design

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Math 27: Number Systems for Educators
Ashley McHale · Las Positas College
In the contents: 07: Geometry · 7.13: Geometry in Art and Science

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Math 150: Survey of Math
Leah Griffith, Veronica Holbrook, Johnny Johnson & Nancy Garcia · Rio Hondo College
In the contents: 06: Measurement and Geometry · 6.02: Geometry

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B-CU: CH-141 General Chemistry 1
Sidney Bolden Jr. · Bethune-Cookman University
In the contents: 4: Chemical Bonding and Molecular Geometry · 4.0: Prelude to Chemical Bonding and Molecular Geometry · 4.E: Chemical Bonding and Molecular Geometry (Exercises)

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Quantway Core
Carnegie Math Pathways · WestEd
In the contents: 5.22: Fundamentals 21A - GeometryPerimeter Area and Volume

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Analysis
CK-Foundation · LibreTexts
In the contents: 6.2.04: Parabolas and Analytic Geometry

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A First Journey Through Linear Algebra
LibreTexts
In the contents: 1.01: Systems of Equations Geometry

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MATH 2514 Calculus III
LibreTexts
In the contents: Chapter 11: Vectors and the Geometry of Space

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Introduction to Computer Graphics
David J. Eck · Hobart and William Smith Colleges
In the contents: 03: OpenGL 1.1- Geometry

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Advanced Theoretical Chemistry
Jack Simons · University of Utah
In the contents: 3.01: Strategies for Geometry Optimization and Finding Transition States

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Organometallic Chemistry
Michael Evans · Georgia Tech
In the contents: 3.04: Predicting the Geometry of Organometallic Complexes

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Structure & Reactivity II: Purification and Spectroscopy
Chris Schaller · College of Saint Benedict/Saint John's University
In the contents: 4.04: Factors in Chemical Shift- Carbon Geometry

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Prealgebra
OpenStax · LibreTexts
In the contents: 09: Math Models and Geometry · 9.06: Solve Geometry Applications- Circles and Irregular Figures · 9.07: Solve Geometry Applications- Volume and Surface Area

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Coastal Dynamics
Judith Bosboom & Marcel J.F. Stive · Delft University of Technology
In the contents: 10.06: The inner basin geometry · 9.6.1: Complex geometry of tidal basins