{"product_id":"9781931468114","title":"A Treatise Of Mathematical Instruments","description":"  \u003ci\u003eA Treatise of Mathematical Instruments\u003c\/i\u003e contains a  complete description of a range of tools that are  useful in mathematics, surveying, architecture,  navigation, drafting, gunnery, physics, and  illustration. It covers the sector (a form of  calculator that predates the slide rule), the gunner's  calipers, the proportional compasses, and a variety of  lesser instruments.  \u003cp\u003e\u003c\/p\u003e  Examples show how to use all of the instruments, with  extensive details on architectural drawing, plane  geoemtry, spherical trigonometry, unit conversion,  surveying, perspective drawing, and ship's guns  (cannons and mortars). 12 plates of figures illustrate  and clarify the text.  \u003cp\u003e\u003c\/p\u003e  Anyone who has ever drafted a plan or drawing by hand  or recalls having used a slide rule will be interested  in this book. Those who has only used electronic  devices will learn something new. Additionally, a  wealth of historical details are revealed through the  extensive figures and the text.  \u003cp\u003e\u003c\/p\u003e  Modern notes include a biography of the author John  Robertson, an explanation of some of the notation used  in the book, and a brief commentary and history on  mathematical methods, surveying, navigation, and  architecture.","brand":"Invisible College Press, LLC","offers":[{"title":"Default Title","offer_id":50023700627696,"sku":"9781931468114","price":14.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781931468114","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}