Example image of eyePlorer eyePlorer map for 'Compass and straightedge constructions': Angle Compass (drafting) Idealization Ruler Straightedge Compass equivalence theorem Plane geometry Field theory (mathematics) Pierre Wantzel Doubling the cube Crank (person) Underwood Dudley Pentagon Squaring the circle Angle trisection Radian Abstract algebra David Hilbert Hilbert's axioms Intercept theorem Cartesian coordinate system Kummer theory Algebraic number Bijection Abelian group Carl Friedrich Gauss Heptadecagon Fermat number Complex number Euclidean geometry Orientation (mathematics) Arg (mathematics) Complex conjugate Square root Addition Division (mathematics) Multiplication Subtraction Cubic function Fraction (mathematics) Rational number Transcendental number Minimal polynomial (linear algebra) Degree (angle) Regular polygon Prime factor Conjecture Necessary and sufficient condition Mohr–Mascheroni theorem Poncelet–Steiner theorem