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How do you get the magnitude of a vector in Numpy?

... "Should be a property of an array: x.norm()" I totally agree. Usually when working with numpy I use my own Array and Matrix subclasses that have all functions I commonly use pulled in as methods. Matrix.randn([5,5]) – mdaoust Feb 7 '12...
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How does Junit @Rule work?

... Rules are used to add additional functionality which applies to all tests within a test class, but in a more generic way. For instance, ExternalResource executes code before and after a test method, without having to use @Before and @After. Using an ExternalResource rather than @Before a...
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How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif

... such as !== or ===, then you can always be sure that the types won't magically change, because there will be no converting going on. So with strict comparison the type and value have to be the same, not only the value. Type comparison table As reference and example you can see the comparison tabl...
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Find first element in a sequence that matches a predicate

...yntax with () creates a generator, which is more efficient than generating all the list at once with []. share | improve this answer | follow | ...
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How to get equal width of input and select fields

...the form, I have one select and two input fields. These elements are vertically aligned. Unfortunately, I can't get equal width of these elements. ...
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Different results with Java's digest versus external utilities

...ly depending on the architecture of your process. This article explains it all - in particular: But what about 32-bit applications that have the system path hard coded and is running in a 64-bit Windows? How can they find the new SysWOW64 folder without changes in the program code, you might thi...
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Difference between HEAD and master

...eference to the end of a branch. By convention (and by default) this is usually the main integration branch, but it doesn't have to be. HEAD is actually a special type of reference that points to another reference. It may point to master or it may not (it will point to whichever branch is currently...
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What is the difference between Caching and Memoization?

... memoization is. As I see it, both involve avoiding repeated function calls to get data by storing it . 5 Answers ...
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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue

... I am using VS2013, MVC 5.2.2.0, Web Api 2. I have just changed the all versions from 2.0.0.0 to 3.0.0.0 of the following section of Web.config resides inside the View folder of my project. <configSections> <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Raz...
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Prevent wrapping of span or div

...pear in a line, left to right in the order they appear in the HTML (essentially unwrapped). 5 Answers ...