Ajit Pai @AjitPai
And so this mathematical obelus was born. https://t.co/yRlhdyBraM — PolitiTweet.org
Fermat's Library @fermatslibrary
In 1659, Johann Heinrich Rahn published Teutsche Algebra. This was the first time the division symbol ÷ appeared in… https://t.co/oBojXDeCYa