utilities

Mathematica has a built-in function ArgMax for functions over infinite domains, based on the standard mathematical definition . The analog for finite domains is a handy utility function. Given a function and a list (call it the domain of the function), return the element(s) of the list that maximize the function. Here's an example of finite argmax in action: Canonicalize NFL team names And here's my implementation of it (along with argmin for good measure): (* argmax[f, domain] returns the element of domain for which f of that element is maximal -- breaks ties in favor of first occurrence. *)

Closed . This question is opinion-based . It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post . Closed 3 months ago . With more and more projects under my belt I find that I am often repeating many common tasks from project to project, client to client. So I have started to assemble a "utility" library, a collection of these common elements that are often repeated from project to project. So far I have utilities to resize images, export data grids to excel, send e-mails, and replace

Sometimes there are some functions or procedures that I write as helpers and utilities to use all across my apps... Now I'm starting to use Symfony 2, and I don't know what is the best way according to symfony 2 philosophy of Bundles... I wouldn't like to have to create a whole Bundle just to store maybe a couple of functions, but if it is the best way I'll do it. Thanks! Elnur Abdurrakhimov If your utilities and helpers are not Symfony specific, create a library in a separate repo and install it to vendors using the deps with the bin/vendors install command or via Composer , which will become

I want to get the previous day (24 hours) from the current time. e.g if current time is Date currentTime = new Date(); 2011-04-25 12:15:31:562 GMT How to determine time i.e 2011-04-24 12:15:31:562 GMT You can do that using Calendar class : Calendar cal = Calendar.getInstance(); cal.setTime ( date ); // convert your date to Calendar object int daysToDecrement = -1; cal.add(Calendar.DATE, daysToDecrement); date = cal.getTime(); // again get back your date object I would suggest you use Joda Time to start with, which is a much nicer API. Then you can use: DateTime yesterday = new DateTime()