Patience is a Virtue

rube“Move x-sub-one to the left, then square both sides…”.  Ruben stepped carefully from expression to equivalent expression.  “…wait, was theta-naught positive, or negative?”

The problem seemed simple enough, just a system of four linear equations.  Well linear-ish, three of the four unknowns were angles, and they were in trig functions, but otherwise totally linear. Continue reading




A good engineer always keeps the ref in his pocket.