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What is the most effective way for float and double comparison?
...ing problems were:
The implicit presumption in an algorithm that if a==b and b==c then a==c.
Using the same epsilon for lines measured in inches and lines measured in mils (.001 inch). That is a==b but 1000a!=1000b. (This is why AlmostEqual2sComplement asks for the epsilon or max ULPS).
The use o...
CSS center text (horizontally and vertically) inside a div block
I have a div set to display:block ( 90px height and width ), and I have some text inside.
27 Answers
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How to cut an entire line in vim and paste it?
I know how to use the v command in vim, but I need something which will delete an entire line and it should allow me to paste the same line somewhere else.
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Windows 7 SDK installation failure
...em to be completely unable to install the Windows 7 SDK onto my machine, and the only solution I've found on the web is to make a swathe of registry changes. I've done this - still no success.
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What is the difference between memoization and dynamic programming?
What is the difference between memoization and dynamic programming? I think dynamic programming is a subset of memoization. Is it right?
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Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
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Decision tree:
Frameworks like Qt and SWT need native DLLs. So you have to ask yourself: Are all necessary platforms supported? Can you package the native DLLs with your app?
See here, how to do this for SWT.
If you have a choice here, you should prefer Qt ...
Is floating point math broken?
...is like this. In most programming languages, it is based on the IEEE 754 standard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly re...
Is JavaScript guaranteed to be single-threaded?
...aded in all modern browser implementations, but is that specified in any standard or is it just by tradition? Is it totally safe to assume that JavaScript is always single-threaded?
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Does Swift have access modifiers?
...e highest (least restrictive) to the lowest (most restrictive).
1. open and public
Enable an entity to be used outside the defining module (target). You typically use open or public access when specifying the public interface to a framework.
However, open access applies only to classes and clas...
Is Zookeeper a must for Kafka?
In Kafka, I would like to use only a single broker, single topic and a single partition having one producer and multiple consumers (each consumer getting its own copy of data from the broker). Given this, I do not want the overhead of using Zookeeper; Can I not just use the broker only? Why is a Zoo...