
Log of a negative number - Mathematics Stack Exchange
Jan 9, 2017 · The point is: the complex logarithm is not a function, but what we call a multivalued function. To turn it into a proper function, we must restrict what θ θ is allowed to be, for example θ ∈ …
What is the point of logarithms? How are they used?
Logarithms are defined as the solutions to exponential equations and so are practically useful in any situation where one needs to solve such equations (such as finding how long it will take for a …
Natural log of a negative number - Mathematics Stack Exchange
Jan 10, 2021 · My teacher told me that the natural logarithm of a negative number does not exist, but $$\ln (-1)=\ln (e^ {i\pi})=i\pi$$ So, is it logical to have the natural logarithm of a negative number?
Why can the base of a logarithm not be negative? [duplicate]
Sep 27, 2021 · The long story short is that "logarithm" isn't a function on the complex plane (because one input can map to multiple outputs), and there's rarely a real answer when dealing with negative …
How is $\\ln$ pronounced by English speakers?
Jun 28, 2017 · Since the natural logarithm is indeed the natural logarithm to use in calculus, it is written as log log with no subscript. Some mathematicians write it as ln ln but still understand log log written …
What algorithm is used by computers to calculate logarithms?
I would like to know how logarithms are calculated by computers. The GNU C library, for example, uses a call to the fyl2x() assembler instruction, which means that logarithms are calculated directl...
Easy way to compute logarithms without a calculator?
Feb 14, 2016 · The definition of a logarithm in reals may help: logb a log b a is such a real number c c that satisfies bc = a b c = a. For example, log2 131072 = 17 log 2 131072 = 17 because 217 = …
Why the number e(=2.71828) was chosen as the natural base for …
Possible Duplicate: What's so “natural” about the base of natural logarithms? Why the number e(=2.71828) was chosen as the natural base for logarithm functions ? Mainly I am interested in …
Why must the base of a logarithm be a positive real number not equal …
Feb 25, 2014 · Why must the base of a logarithm be a positive real number not equal to 1? Ask Question Asked 11 years, 11 months ago Modified 6 years, 2 months ago
education - how to see the logarithm as the inverse function of the ...
The domain of logarithm base a a is all positive numbers and range is all real numbers. Using the fact that the domain and range of any invertible function are just the range and domain of its inverse.