Why base e
Is Big O logn log base e? Ask Question. Asked 12 years ago. Active 3 years, 6 months ago. Viewed 47k times. Improve this question. David Nehme As others have cogently pointed out, it doesn't matter.
All logarithms differ from each other by a constant only dependent on the bases involved. Because these factors are constants, they are irrelevant for the purposes of asymptotic analysis.
Second, as far determining the implied base, it depends on context. As a rough rule of thumb use the following: 1. When a mathematician writes log n he means the natural logarithm. When a computer scientist writes log n he means base-two. When an engineer writes log n he means base-ten. These are usually true. Jason, another convention within mathematics is that ln n means the natural logarithm and log n is base ten. Think ln stands for the French 'logarithm naturelle'.
The base of the logarithm is the number of children each node has. If it's a binary tree then it's a base 2 log.
I appreciate your answer, Jason, and here's something to think about. I entered these quickly in my calculate to help conceptualize where O n logn has better or worse run time than O n. Depending on the base it DOES matter. Therefore, I really think the RIGHT answer to this should be that log contextually means base 2 in most computer science applications. The other two examples are reasonable. Show 3 more comments. Active Oldest Votes. Improve this answer.
K DawG 12k 9 9 gold badges 30 30 silver badges 64 64 bronze badges. The first line that defines 'handler' is a thread safe technique for firing the event. The actual event delegate is stored in a collection named Events. Events[EventPaint]; if handler! It fires the Paint event. Overriding the On EventName method is the preferred way to subscribe to events defined within the class or within the parent class.
It if did, then you would have a problem. It almost all cases, you would want to call the base method so that the base class can perform its' requisite tasks. The scenario that Mario describes is an excellent example.
There is a subtle difference between calling base. OnPaint or not. Just like I wanted. Markus, thanks for the tip! Works on macOS too. The following command hides base environment. Felix Solomon Felix Solomon 4 4 silver badges 10 10 bronze badges. To remove it only for the base environment but not for others, check this: stackoverflow. The most elegant solution indeed!
To deactivate a conda environment, enter: conda deactivate This will remove the base before your Linux prompt, as seen here:. Eliah Kagan k 51 51 gold badges silver badges bronze badges. Marley Davis Marley Davis 2 2 silver badges 4 4 bronze badges. WeezyKrush WeezyKrush 51 7 7 bronze badges.
Use 'conda deactivate'. It appears to still be an experimental feature of Anaconda. To revert it back to normal you can run the command: conda init --reverse Then you need to close the current shell window and open a new one to see the modifications.
Anderson Chaves Anderson Chaves 1 1 1 bronze badge. The Overflow Blog. Podcast The first ten years of our programming lives. Featured on Meta. And note that the Octal and Hexadecimal representations within computing are the ones closest to base Because these ancient folks didn't fully foresee the glory of modern computer technology.
Else they would have choosen a base that would be more compatible with computers binary number system: 8! Generations of computer science students would it have so much easier and everything would be much better:.
And we would not need funny things like mebibyte :. The reason is history and tradition. The decimal system is a convention that was adopted long ago and is so widespread and used that it would be enormously difficult to change it for any other system, no matter how advantageous it may be.
This is not the only example, we have the gregorian calendar rather crude , and the british imperial system of units, which one could argue to be "unnatural". Attempts have been made to adopt better systems, but as far as I know they have failed on account of the effort it would take to make such change.
Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Why have we chosen our number system to be decimal base 10? Ask Question. Asked 10 years, 11 months ago.
Active 5 months ago. Viewed 76k times. Samrat Patil Samrat Patil 1 1 gold badge 5 5 silver badges 6 6 bronze badges. Show 12 more comments. Active Oldest Votes. Ifrah then goes on to explain that Andrey Rekalo Andrey Rekalo 7, 3 3 gold badges 43 43 silver badges 42 42 bronze badges. For example see this review part1 , part2 by the eminent mathematical historian Joseph Dauben. I have not been aware of the controversy.
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