May 14, 2015 - Rectangled Software has released Operands 1.0 for iOS. Operands is a challenging math puzzle game that allows players to find out how their quick thinking stacks up against the best on the planet. Swipe symbols and swap numbers to solve each puzzle and compete against the entire world for math dominance! Level up past 29 famous mathematicians while solving more than 100,000 puzzles. Learn about each mathematician's contribution as you hone your math reflexes and exercise your grey matter.