11 citations · 19 across the 9 of their papers we have counts for
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math.CA2009★ 1 cited
Spread polynomials, rotations and the butterfly effect
Shuxiang Goh, N. J. Wildberger
The spread between two lines in rational trigonometry replaces the concept of angle, allowing the complete specification of many geometrical and dynamical situations which have tra…
math.MG2009★ 3 cited
Universal Hyperbolic Geometry I: Trigonometry
N. J. Wildberger
Hyperbolic geometry is developed in a purely algebraic fashion from first principles, without a prior development of differential geometry. The natural connection with the geometry…