Rational Trigonometry, Generalized Triangle Geometry and Four-Fold Incenter Symmetry
Insights into Mathematics via YouTube
Overview
Syllabus
Introduction
Quadrance between points
Pythagoras theorem
Blue Pythagoras
Red Pythagoras
Green Pythagoras
Triple quad formula
Spread between lines
Spread as a normalized squared determinant
Laws of affine rational trigonometry
Triangle geometry and the blue Euler line
Red Euler line
Green Euler line
Omega triangle and Chromogeometry
Triangle geometry with general bilinear forms
Standard coordinates
Standard quadrances and spreads
The Euler line
Bilines and Incenter formulas
Bilines, Incenters, Incircles, contact points
Gergonne points G
Nagel points
Gergonne-Nagel lines and X69
Isogonal and isotomic conjugates
Gergonne-Nagel lines and X69
Bevan points B
Mittenpunkts
Summary
Summary
Summary
Mittenpunkts
Coloured Incenter Circles
More info/References
Taught by
Insights into Mathematics