Flatland

by Edwin Abbott Abbott

Spoken by Horatio, in William Shakespeare's Hamlet, act 1, scene 5, line 164. Hamlet has just been conversing with his f...

Beautiful Geometry

by Eli Maor, Eugen Jost

The symmetries of things

by John Horton Conway, Heidi Burgiel

Tilings and patterns

by Branko Grunbaum, Branko Gruenbaum

Crocheting Adventures with Hyperbolic Planes

by Daina Taimin̦a

Algebra & trigonometry

by Michael Joseph Sullivan Jr., Michael Sullivan III

Trigonometry

by Charles P. McKeague

Analytic trigonometry with applications

by Raymond A. Barnett, Michael R. Ziegler

If you were asked to find your height, you would no doubt take a ruler or tape measure and measure it directly.

Handbook of discrete and computational geometry

by Joseph O'Rourke, Jacob E. Goodman

The study of combinatorial properties of finite point configurations is a vast area of research in geometry, whose origi...

Classical Geometry

by I. E. Leonard, J. E. Lewis

The geometry problem solver

by Research and Education Association, Ernest Woodward

Essential arithmetic

by C. L. Johnston, C.L. Johnston

Geometric theory of foliations

by César Camacho, César Camacho

In this chapter, we state the basics of the theory of differentiable manifolds and maps with the intention of establishi...

Cálculo y geometría analítica

by Ron Larson, Robert P. Hostetler

Symmetry, shape, and space

by L. Christine Kinsey, L.Christine Kinsey

These first two sections are intended to remind you of some basic tools and formulae which will be used throughout the t...

Finite Geometries

by Gyorgy Kiss, Tamas Szonyi

Shapes

by Esther Sarfatti

Modern differential geometry of curves and surfaces with Mat...

by Alfred Gray, Elsa Abbena

Basic geometry for college students

by Alan S. Tussy

Perceptrons

by Marvin Minsky, Seymour Papert