John napier inventions

logarithms

What is John Napier most famous for?

John Napier , Napier also spelled Neper, (born 1550, Merchiston Castle, near Edinburgh, Scot. â€”died April 4, 1617, Merchiston Castle), Scottish mathematician and theological writer who originated the concept of logarithms as a mathematical device to aid in calculations.

What did John Napier contribution to computers?

Napier was a Scottish mathematician and theological writer who came up with the concept of logarithms as a mathematical device to aid in calculations. It was the use of logarithms which formed the base for the invention of analog computers and slide rules.

1617

Mayans

What do you know about Napier bones?

Napier’s bones is a manually-operated calculating device created by John Napier of Merchiston, Scotland for the calculation of products and quotients of numbers. The method was based on lattice multiplication, and also called ‘rabdology’, a word invented by Napier .

What school did John Napier go to?

University of St Andrews

Where is John Napier from?

Edinburgh, United Kingdom Merchiston Tower

John Napier

How did Blaise Pascal help the progress of computers?

Pascal’s calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in the mid 17th century. He designed the machine to add and subtract two numbers directly and to perform multiplication and division through repeated addition or subtraction.

Why did John Napier invent logarithms?

John Napier , the Scottish mathematician, published his discovery of logarithms in 1614. His purpose was to assist in the multiplication of quantities that were then called sines. The whole sine was the value of the side of a right angled triangle with a large hypotenuse, say 107 units long.

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John Napier

Edinburgh

John Napier