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math.GM2020
A Gauche perspective on row reduced echelon form and its uniqueness
Eric L. Grinberg
Using a left-to-right "sweeping" algorithm, we define the \emph{Gauche basis} for the column space of a matrix . By means of the Gauche basis we interpret the row reduced echelo…
math.HO2020
Morley Trisectors and the Law of Sines with Reflections
Eric L. Grinberg, Mehmet Orhon
We invoke the Law of Sines to prove Morley's Trisector Theorem. Though the sinusoidal function appears, the proof is safe for the trigonometrically distanced.