{"product_id":"dead-reckoning-calculating-without-instruments","title":"Dead Reckoning: Calculating Without Instruments","description":"No author has gone as far as Doerfler in covering methods of mental calculation beyond simple arithmetic. Even if you have no interest in competing with computers you'll learn a great deal about number theory and the art of efficient computer programming. ―Martin Gardner","brand":"Outliers Books","offers":[{"title":"Default Title","offer_id":52900016914743,"sku":null,"price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/3633\/0295\/files\/21662213482502.jpg?v=1787761789","url":"https:\/\/outliersbooks.shop\/products\/dead-reckoning-calculating-without-instruments","provider":"Outliers Books","version":"1.0","type":"link"}