Bones
John Napier (1550 - 4 April 1617) was a Scottish mathematician, physicist, astronomer, and astrologer. He is known as the inventor of logarithms, Napier's bones, and made using the decimal point popular.
Because he wanted a simple calculating device. (It's "bones" actually.)
1572 john Napier marries Agnes Chisholm
The rods in John Napier's invention, known as Napier's Bones, basically contained the columns of a multiplication table. They could be used to multiply, divide, and even extract square roots. John Napier also was a pioneer in creating tables of logarithms, but the rods had nothing to do with that.
To have a type of abacus to use.
In 1614, John Napier published his invention of logarithms.
John Napier invented the Napier`s bone in 1617
John Napier
in 1614 john Napier invented logarithms and a device called NAPIER,s bones
logarithmic device called as napier bones
John Napier's calculating machine invention is called "Napier's Bones."
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Napier's Bones is a quick and easy way of doing multiplications, invented by John Napier in the 17th Century.
John Napier is best known for discovering logarithms. He also invented Napier's bones. John Napier was a famous Mathematician that was born in 1550 and passed away in 1617.
John Napier
John Napier is best known as the discoverer of logarithms. He was also inventor of Napier's Bones. Which were multiplication tables written on strips of wood or bones. The invention was used for multiplying, dividing, and taking square roots and cube roots. He also made common the use of the decimal point in math.