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...
What is the point of logarithms? How are they used?
Logarithms are a convenient way to express large numbers. (The base-10 logarithm of a number is roughly the number of digits in that number, for example.) Slide rules work because adding and subtracting logarithms is equivalent to multiplication and division. (This benefit is slightly less important today.) Lots of things "decay logarithmically".
How do I square a logarithm? - Mathematics Stack Exchange
2015年5月7日 · Is the logarithm function injective (one-to-one)? 2. How to solve this logarithm equation. 0.
education - In which branch of mathematics does "logarithm" …
should I classify logarithm into arithmetic or algebra? Here is the definition of arithmetic by Oxford dictionary: the branch of mathematics dealing with the properties and manipulation of numbers. and the definition of algebra:
What are the parts of a logarithm called? [duplicate]
2016年12月27日 · $\begingroup$ I had "the logarithm of a number is the index to which the base is raised to equal that number" drilled into me 60 years ago. It's still helpful when I need a reminder what does what. It's still helpful when I need a reminder what does what.
Intuition behind logarithm inequality: $1 - \\frac1x \\leq \\log x ...
Help to find the best lower bound function for a given set of data, based in the natural logarithm function 1 Find the roots of a function with logarithms (possibly using lambert W function)
When do we use common logarithms and when do we use natural …
2021年5月14日 · Currently, in my math class, we are learning about logarithms. I understand that the common logarithm has a base of 10 and the natural has a base of e. But, when do we use them? For example the equation $7^{x-2} = 30$ in the lesson, you solve by rewriting the equation in logarithmic form $\log_7 30 = x-2$. The,n apply the change of base formula ...
terminology - Where did the word "logarithm" come from?
2011年5月8日 · logarithm: 1610s, Mod.L. logarithmus, coined by Scottish mathematician John Napier (1550-1617), lit. "ratio-number," from Gk. logos "proportion, ratio, word" algorithm: was derived from the name of 8th century Persian mathematcian al-Kwarizmi. Note: I think it's unusual for a term to derive from a person's name, especially in mathematics.
logarithms - How do I find the base when Log is given
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logarithms - Approximating Logs and Antilogs by hand
Now, all of these need an unbelievable amount of time to build a table of logarithms, even if you want only logs of numbers from $100$ to $1000$ to four decimals. And there is no simple way to compute just one logarithm only by hand. There are the series above, polynomial approximations, and probably other ways, but nothing as easy to use as a ...