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Why are quaternions used for rotations?
I'm a physicist, and have been learning some programming, and have come across a lot of people using quaternions for rotations instead of writing things in matrix/vector form.
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Why would you use Expression rather than Func?
I understand lambdas and the Func and Action delegates. But expressions
stump me.
10 Answers
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How to add double quotes to a string that is inside a variable?
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and how to remove it while saving in database? I just want to remove additional double quote used for escaping and not both
– Anil Purswani
Sep 30 '14 at 10:35
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Find maximum value of a column and return the corresponding row values using Pandas
...ut the length of the dataFrame & that index which satisfies the right hand side of the expression( .max()) returns the index, which in turn calls the complete row of that dataFrame
– penta
Feb 22 '19 at 5:28
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Freeze screen in chrome debugger / DevTools panel for popover inspection?
I'm using the chrome inspector to try and analyze the z-index of a twitter bootstrap popover, and finding it extremely frustrating...
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Changing image size in Markdown
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With certain Markdown implementations (including Mou and Marked 2 (only macOS)) you can append =WIDTHxHEIGHT after the URL of the graphic file to resize the image. Do not forget the space before the =.
You can skip the HEIGHT
![](./pic/pic1s.p...
Why do you not use C for your web apps?
...different web servers this morning when I came across G-WAN . As I understand, its a web server written in C and you have to make use of it by writing your websites/webapps in C. One clear benefit is speed as the G-WAN site suggests.
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Why does .NET foreach loop throw NullRefException when collection is null?
...the answer might be obvious to some people, it is not obvious to everyone, and providing the hint that looking at the IL will tell you what the compiler is doing, helps people fish for themselves in the future.
– Robaticus
May 10 '17 at 23:36
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How can I transform string to UTF-8 in C#?
I have a string that I receive from a third party app and I would like to display it correctly in any language using C# on my Windows Surface.
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
... experience with Java shows that type variables improve code comprehension and make more refactorings possible.
– tgdavies
Nov 4 '10 at 16:52
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