Napier Bones Calculator

NAPIER’S BONES :
It is created by John Napier in the year 1617. It is the better calculating device invented at that time period. It is the type of operating device which is operated manually for the purpose of calculations of quotients and products of the given numbers. It looks like a board game that contains a rim into it. And the various rods are placed inside the rims for the purpose of calculations where the numbers are printed on them.

Kinds of Napier’s Rods or Bones :

1. Index bone –
   It is used to help or align the strips and also to identify rows that are there on the digit strips.
2. Digital bone –
   It is a More than one digit bone that is of the same kind as it is needed to represent a number that is more than one of the same digit.
3. Square root bone –
   While taking a root requires the 3 simultaneous computations, and the 3 columns are needed on the bone. These are called the square of the digit. It helps in making multiples of a number very easily, also the multiplication, division, and the taking of a square root as well.

Example –
The following is an example of how does the Napier bones calculator works.

• The number 0-8 are written at the top of the eight columns in a square.
• The diagonal lines split each square in half.
• The numbers written from 2-9 are in the left side of the box.
• The numbers written at the top of each box is being multiplied by each number on the left.
• At last, the units of the answer are written at the bottom side of each box or square.
  

  
  Napier Bones

Feature of Napier’s Rods or Bones :

• The Napier bones calculator is made up of wood, metal, and heavy cardboard.
• The main purpose of Napier bone calculators is to calculate the quotients and products of the given numbers.
• All the mathematical calculations like addition, subtraction, multiplication, and division are calculated and performed by it.