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How does C compute sin() and other math functions?
...come possible fairly recently. In some cases this can be slow because many extra digits may need to be calculated to ensure correct rounding. In other cases it is extremely quick -- for small enough numbers the answer is just the angle.
– Bruce Dawson
Oct 16 '1...
Installing rmagick on Ubuntu
....2 sudo apt-get install libmagickwand-dev libmagickcore-dev libmagickcore4-extra libgraphviz-dev libgvc5 worked for me.
graphicsmagick-libmagick-dev-compat installed but didn't include the header files so rmagick wouldn't compile.
Please note, you need to remove graphicsmagick-libmagick-dev-compat...
Representing null in JSON
...son2 = '{"myCount": null}';
var json3 = '{"myCount": 0}';
var json4 = '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.parse(json1)); // {}
console.log(JSON.parse(json2)); // {myCount: null}
console.log(JSON.parse(json3)); // {myCount: 0}
conso...
Creating rounded corners using CSS [closed]
... manage to support anti-aliasing. There are also ways of using these sans extra markup, you can implement with a class and then the markup is added dynamically to the classed elements. That said, the more I use them the more you seem right...they're useful for prototyping but add a lot of extra we...
What is content-type and datatype in an AJAX request?
...json",
contentType: "application/json; charset=utf-8",
data : JSON.stringify(data),
success : function(result) {
alert(result.success); // result is an object which is created from the returned JSON
},
});
If you're expecting the following:
<div>SUCCESS!!!</div>...
How to change app name per Gradle build type
...l on <application>, the simplest solution is to have that point at a string resource (e.g., android:label="@string/app_name"), then have a different version of that string resource in a src/debug/ sourceset.
You can see that in this sample project, where I have a replacement for app_name in s...
What does .class mean in Java?
....
object.getClass() returns the class of the given object.
For example:
String string = "hello";
System.out.println(string.getClass().toString());
This will output:
class java.lang.String
This is the class of the string object :)
...
Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
... do is to cast your list down to an ArrayList. Here's an example:
List<String> list = new ArrayList<String>();
((ArrayList<String>) list).ensureCapacity(19);
Ultimately I think tsatiz is correct as once you cast to an ArrayList you're no longer coding to an interface. However, i...
Recommended date format for REST GET API
...rticle. While I agree with the choice of a sortable format if it must be a string at all, a unix timestamp (which the article does not even acknowledge) has every one of the stated benefits and more. Until presentation, the issues of timezones and daylight savings (and political decisions) don't eve...
Dynamically creating keys in a JavaScript associative array
...
Assuming the text string actually does have the curly braces, you could more or less treat it as JSON.. replace the = sign with a : and you've got an object to eval..
– neonski
Dec 9 '08 at 3:15
...