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....Exchange(ref int, int)) solved the problem.
– John Källén
Jun 5 '12 at 16:30
1
First line of t...
range() for floats
...y. Due to the curse of floating point arithmetics, for example frange(0.0, 1.0, 0.1) yields 11 values, where the last value is 0.9999999999999999. A practical improvement would be while x + sys.float_info.epsilon < y: although even this can probably fail with large numbers.
–...
How to take a screenshot programmatically on iOS
...csEndImageContext();
NSData *imageData = UIImageJPEGRepresentation(image, 1.0 ); //you can use PNG too
[imageData writeToFile:@"image1.jpeg" atomically:YES];
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What does the 'standalone' directive mean in XML?
... an example, consider the humble <img> tag. If you look at the XHTML 1.0 DTD, you see a markup declaration telling the parser that <img> tags must be EMPTY and possess src and alt attributes. When a browser is going through an XHTML 1.0 document and finds an <img> tag, it should no...
When should I use genetic algorithms as opposed to neural networks? [closed]
...e useful for recognizing patterns. They follow a simplistic model of the brain, and by changing a number of weights between them, attempt to predict outputs based on inputs.
They are two fundamentally different entities, but sometimes the problems they are capable of solving overlap.
...
Version vs build in Xcode
...uild number every time I build. See instructions for that below.
Release 1.0.0 might be build 542. It took 542 builds to get to a
1.0.0 release.
Release 1.0.1 might be build 578.
Release 1.1.0 might be build 694.
Release 2.0.0 might be build 949.
Other developers, including Apple, have a Build n...
How can mixed data types (int, float, char, etc) be stored in an array?
... low bits used to store the type (int, string, object... etc.). But since JägerMonkey they took another path (Mozilla’s New JavaScript Value Representation, backup link). The value is now always stored in a 64-bit double precision variable. When the double is a normalized one, it can be used dire...
Get Android API level of phone currently running my application [duplicate]
...rsion Name
1 BASE Android 1.0 (no codename)
2 BASE_1_1 Android 1.1 Petit Four
3 CUPCAKE Android 1.5 Cupcake
4 DONUT Android 1.6 Donut...
R command for setting working directory to source file location in Rstudio
I am working out some tutorials in R. Each R code is contained in a specific folder. There are data files and other files in there. I want to open the .r file and source it such that I do not have to change the working directory in Rstudio as shown below:
...
Draw line in UIView
...pathDict valueForKey:@"path"] strokeWithBlendMode:kCGBlendModeNormal alpha:1.0];
}
[[dict_path objectForKey:@"color"] setStroke]; // this method will choose the color from the receiver color object (in this case this object is :strokeColor)
[[dict_path objectForKey:@"path"] strokeWithBl...