![]() This could perform basic arithmetic calculations of large numbers more accurately. In the mid 19th century, Thomas de Colmar invented and produced the first mechanical calculator robust enough for everyday use.This machine, too, spurred a host of imitators. Felt's US-patented key driven 'Comptometer' took calculating into the push button age. The Pascal calculator includes some operations that were thought impossible. In 1642, Blaise Pascal discovered a calculator based on a clockwork-type mechanism.They are not devises that avoid human works All the above mentioned methods help in making human efforts easy.Even square roots were calculated from this. Using the rods in vertical direction and calculating sum in horizontal direction, more complex calculations can be done. It is a method of calculating using rods with a device called Naiper bones. In 1617, John Raiber, a scottish mathematician, developed a device that uses Rabdology.After that it was predominantly used all over the world for the next 4500 years in spite of its complexity. Around 2500 BCE, a method called Abacus was discovered in Sumeria and eventually spread to Europe, Asia and all over the world.This also cannot be used for complex calculations after the discovery of astronomy and commerce. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |