Changes

==History==

==History==

Logarithms were used for centuries as a computing tool by [[scientist]]s making pencil-and-paper [[computation]]s.  

Logarithms were used for centuries as a computing tool by [[scientist]]s making pencil-and-paper [[computation]]s, because the use of logarithms can greatly simplify arithmetical calculations.  For example, raising a number x to any power y (where x and y might be large or fractional) can be achieved by first looking up the logarithm of x, then multiplying by y, and then finding the inverse logarithm of the result.

Logarithms were invented or discovered by [[John Napier]] in 1614 AD, and quickly revolutionized astronomy. Johannes Kepler said that Napier "tripled the life of an astronomer."

Logarithms were invented or discovered by [[John Napier]] in 1614 AD, and quickly revolutionized astronomy. Johannes Kepler said that Napier "tripled the life of an astronomer."