Elliptical training machine
Yesterday I was at the gym, and asked myself: does the elliptical training machine really trace an ellipse? The answer is: not exactly, and here's a visual proof.
Discovering Properties of Isosceles Trapezoids (Scaf…
Multiply by i vectors
9.1.3 Pre #1103407 option C
[+Quantum Continuum]: En - [graphical method]