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In which order should floats be added to get the most precise result?

This was a question I was asked at my recent interview and I want to know (I don't actually remember the theory of the numerical analysis, so please help me :) ...
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What is the difference between a reference type and value type in c#?

Some guy asked me this question couple of months ago and I couldn't explain it in detail. What is the difference between a reference type and a value type in C#? ...
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What is the difference between JSON and Object Literal Notation?

...nce between a JavaScript object defined by using Object Literal Notation and JSON object ? 10 Answers ...
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What are Vertex Array Objects?

...://openglbook.com/the-book/ I got to chapter 2, where I draw a triangle, and I understand everything except VAOs (is this acronym OK?). The tutorial has this code: ...
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Representing graphs (data structure) in Python

... ('E', 'F'), ('F', 'C')] The data structure I've found to be most useful and efficient for graphs in Python is a dict of sets. This will be the underlying structure for our Graph class. You also have to know if these connections are arcs (directed, connect one way) or edges (undirected, connect bo...
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请停下来重新想下 你究竟为何创业? - 资讯 - 清泛网 - 专注C/C++及内核技术

...我们与Basecamp上的付费用户打交道已有11年之久!我和Jason Fried在一起工作有14年了,而不断壮大的Basecamp团队也快10岁了。 我将把这种长寿的状态继续下去:现代工作不欠你什么。也许你说,如今所有的关系都是短暂的。尽可能...
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How do Trigonometric functions work?

So in high school math, and probably college, we are taught how to use trig functions, what they do, and what kinds of problems they solve. But they have always been presented to me as a black box. If you need the Sine or Cosine of something, you hit the sin or cos button on your calculator and you'...
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how to ignore namespaces with XPath

...d of selecting a node like /path/to/x:somenode you can select all nodes and filter for the one with the correct local name: /path/to/*[local-name() = 'somenode'] share | improve this answer ...
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Explicitly calling return in a function or not

... Question was: Why is not (explicitly) calling return faster or better, and thus preferable? There is no statement in R documentation making such an assumption. The main page ?'function' says: function( arglist ) expr return(value) Is it faster without calling return? Both function() and re...
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REST authentication and exposing the API key

I've been reading up on REST and there are a lot of questions on SO about it, as well as on a lot of other sites and blogs. Though I've never seen this specific question asked...for some reason, I can't wrap my mind around this concept... ...