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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="sys...
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Fastest way to list all primes below N

... +100 Warning: timeit results may vary due to differences in hardware or version of Python. Below is a script which compares a number of...
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What is the maximum length of latitude and longitude? [closed]

... If latitude coordinate is reported as -6.3572375290155 or -63.572375290155 in decimal degrees then you could round-off and store up to 6 decimal places for 10 cm (or 0.1 meter) precision. Overview The valid range of latitude in degrees is -90 and +90 for the southern and nor...
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How to round a number to significant figures in Python

... 20 Answers 20 Active ...
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Dynamically select data frame columns using $ and a character value

...itten as `$`(df , V1) or indeed `$`(df , "V1") But... `$`(df , paste0("V1") ) ...for instance will never work, nor will anything else that must first be evaluated in the second argument. You may only pass a string which is never evaluated. Instead use [ (or [[ if you want to extract only...
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Animation CSS3: display + opacity

...:hover .child { display: block; -webkit-animation: fadeInFromNone 0.5s ease-out; -moz-animation: fadeInFromNone 0.5s ease-out; -o-animation: fadeInFromNone 0.5s ease-out; animation: fadeInFromNone 0.5s ease-out; } @-webkit-keyframes fadeInFromNone { 0% { display: no...
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Small Haskell program compiled with GHC into huge binary

... for GNU/Linux 2.6.27, not stripped $ ldd A linux-vdso.so.1 => (0x00007fff1b9ff000) libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0x00007fb21f418000) libX11.so.6 => /usr/lib/libX11.so.6 (0x00007fb21f0d9000) libGLU.so.1 => /usr/lib/libGLU.so.1 (0x00007fb21ee6d000) lib...
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Find XOR of all numbers in a given range

...ven a large range [a,b] where 'a' and 'b' can be typically between 1 and 4,000,000,000 inclusive. You have to find out the XOR of all the numbers in the given range. ...
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Sample random rows in dataframe

... 460 First make some data: > df = data.frame(matrix(rnorm(20), nrow=10)) > df X1 ...
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How to host a Node.Js application in shared hosting [closed]

... 160 You can run node.js server on a typical shared hosting with Linux, Apache and PHP (LAMP). I hav...