Percy Ludgate

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Percy Edwin Ludgate (August 2, 1883 - October 16, 1922) was an accountant in Dublin and designer of an Analytical Engine. Working alone, Ludgate designed an Analytical Engine while unaware of Charles Babbage's designs, although he later went on to write about Babbage's machine. Ludgate's engine used multiplication as its base mechanism unlike Babbage's which used addition, Ludgate's engine used rods similar to slide rules. Its precise mechanism is unknown as only written accounts of the engine survive which do not detail its workings.