where did the us dollar sign come from
Dollar sign A common hypothesis holds that the sign derives from the symbolic representation of the Pillars of Hercules â€“ this representation can either have a banner separately around each pillar, or as in the Spanish coat of arms, a banner curling between them.
My Ántonia
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.
Rabbit rabbit rabbit The exact origin of the superstition is unknown, though it was recorded in Notes and Queries as being said by children in 1909: