natural logarithm

We can see this in FiveThirtyEight’s urbanization index, which captures how urban or rural an area is by calculating the natural logarithm of the average number of people living within a five-mile radius of another resident.
What Democrats Can Learn From Nebraska’s Shift To The Right|Ross Benes (rossbenes@gmail.com)|December 30, 2020|FiveThirtyEight
To figure out a dog’s biological age, they say, multiply the natural logarithm of the dog’s age in years by 16.
To figure out your dog’s ‘real’ age, you’ll need a calculator|Bethany Brookshire|August 12, 2020|Science News For Students
In 2007 he said he had discovered a cure for AIDS using natural herbs.
The Shadowy U.S. Veteran Who Tried to Overthrow a Country|Jacob Siegel|January 6, 2015|DAILY BEAST
Total oil production figures include crude oil, natural gas liquids, and other liquid energy products.
Fact-Checking the Sunday Shows: Jan. 4|PunditFact.com|January 5, 2015|DAILY BEAST

On top of oil, the United States produces significantly more natural gas than Saudi Arabia.
Fact-Checking the Sunday Shows: Jan. 4|PunditFact.com|January 5, 2015|DAILY BEAST
More to the point, Huckabee has a natural appeal to a party that has come to represent the bulk of working class white voters.
Can Huckabee Convert the GOP’s Moneymen?|Lloyd Green|January 4, 2015|DAILY BEAST
He declared that Western women are sexually promiscuous in a manner not even found in the natural world.
50 Shades of Iran: The Mullahs’ Kinky Fantasies about Sex in the West|IranWire, Shima Sharabi|January 1, 2015|DAILY BEAST
It is full of poetic feeling, and the flesh tints are unusually natural.
Women in the fine arts, from the Seventh Century B.C. to the Twentieth Century A.D.|Clara Erskine Clement
The place was well defended by earthworks and natural parapets, and for several hours the issue of the contest was doubtful.
The Philippine Islands|John Foreman
In the old world, poverty seemed, and poverty was, the natural and inevitable lot of the greater portion of mankind.
The Unsolved Riddle of Social Justice|Stephen Leacock
Whatever the species, it is well to imitate the natural conditions as much as possible in the way of soil.
How to Know the Ferns|S. Leonard Bastin
Piedmont alone vies with her, and is improving far more rapidly, but Lombardy has great natural capacities peculiarly her own.
Glances at Europe|Horace Greeley

British Dictionary definitions for natural logarithm

natural logarithm

noun

a logarithm to the base e. Usually written log e or lnAlso called: Napierian logarithm Compare e (def. 1), common logarithm

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for natural logarithm

natural logarithm

A logarithm using base e. Natural logarithms are common in mathematics, especially in cases involving complex numbers. They are also called Napierian logarithms, after their inventor, English mathematician John Napier (1550-1617). See more at e. Compare common logarithm.