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Standard deviation of a list
I want to find mean and standard deviation of 1st, 2nd,... digits of several (Z) lists. For example, I have
8 Answers
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Using Core Data, iCloud and CloudKit for syncing and backup and how it works together
...am in the early stages of creating an app where I would like to save, sync and backup data. The app will not store any files just data in a database. It is going to be iOS 8 and up so I am able to use CloudKit. I did some research and still not clear on how Core Data, iCloud and CloudKit work toge...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
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Culprit: False Data Dependency (and the compiler isn't even aware of it)
On Sandy/Ivy Bridge and Haswell processors, the instruction:
popcnt src, dest
appears to have a false dependency on the destination register dest. Even though the instruction only...
Why does Math.Round(2.5) return 2 instead of 3?
...ug. C# is the language - it doesn't decide how Math.Round is implemented.
And secondly, no - if you read the docs, you'll see that the default rounding is "round to even" (banker's rounding):
Return ValueType: System.DoubleThe integer nearest a. If the
fractional component of a is halfway
b...
String.format() to format double in java
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If there is more than one double to format, use %1, %2, and so on. For example String.format("%1$,.2f, %2$,.2f", myDouble, aDouble)
– Moesio
Mar 10 '13 at 5:29
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How to write to file in Ruby?
I need to read the data out of database and then save it in a text file.
7 Answers
7
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HTML: Include, or exclude, optional closing tags?
...unless I have a very good reason not to) because it lends to more readable and updateable code.
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to remove first and last element in array
How to remove first and last element in an array?
12 Answers
12
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Current time formatting with Javascript
...oneOffset() - Returns the number of minutes between the machine local time and UTC.
There are no built-in methods allowing you to get localized strings like "Friday", "February", or "PM". You have to code that yourself. To get the string you want, you at least need to store string representations...
How to reset radiobuttons in jQuery so that none is checked
...e note 2 below).
Note 1: it is important that the second argument be false and not "false" since "false" is not a falsy value. i.e.
if ("false") {
alert("Truthy value. You will see an alert");
}
Note 2: As of jQuery 1.6.0, there are now two similar methods, .attr and .prop that do two related b...