Why do I love Debian? Coz of the package management system. Now Ruby has the same nice feature, called RubyGems

Install:

ruby install.rb

gem --remote --list

gem --remote --search Doom

gem --remote --install progressbar

Now relax, have a good milkshake in the sun. A big big thanks to the developers: Rich Kilmer, Chad Fowler, David Black, Paul Brannan, Jim Weirch, Curt Hibbs, Gavin Sinclair, etc.

Of course, the devil’s in the details: there’s inventory to manage, backorders to fulfill, outstanding invoices to collect, orders to process, bills to pay, and customers to service. The goal of business may be simple enough — but the business of running a business is anything but.

Fortunately, computers are a natural for the back office, and software to manage a business — called customer relationship management (CRM) and enterprise resource management (ERP) software — has become a big business in itself. SAP, Oracle, PeopleSoft, and Microsoft charge plenty of beans for bean counting software. For example, Microsoft’s Great Plains Software division charges $50,000 for a license, $100,000 for implementation, and $20,000 a year for maintenance.

But just as Linux has provided a free alternative to proprietary operating systems like Windows and Solaris, Compiere, this month’s "Project of the Month," provides an open source alternative to commercial CRM and ERP solutions. link

Its features include:

• A test-centric design that allows you extensively unit test any program that runs on top of Lafcadio. It comes with a MockObjectStore, which mimics the database and allows you to test database interactions without all the annoying setup code of a real database-driven test.
• A block-driven querying language that will cover 99% of the ad-hoc queries you have to do. These queries look like: child_users = object_store.getUsers { |user| user.age.lt( 18 ) }

These queries can be run against the MockObjectStore, meaning they can be unit-tested.

• In-Ruby triggers that can be written per domain class. These triggers can be tested, too!
• Lafcadio makes very few assumptions of how your database was setup, and comes complete with a lot of hooks to allow you to fit your pre-existing database. Because programming’s a messy job, and we’re always cleaning up after somebody’s mistakes (even if they were our own).

Lafcadio is production-ready and runs a number of websites, including Rhizome.org, which more than 3 million hits a month.

link

(Source: whytheluckystiff) The (Poignant) Guide is a new approach to teaching Ruby, emphasizing the lingual traits of Ruby and illustrating its uniqueness with comics, visual imagery, and songs with accompanying hand gestures.

This date marks the release of the first three chapters. Feel free to tell your friends and family (a.k.a. Slashdot) about the news. With enough input and support, this book could see completion by next year. Hopefully this is a step towards explaining to the world why Ruby is such an enticing and voluptuous gem to behold.

Go and enjoy the book

Okay, I’ll keep this short. If you want to read more about my motivation, head over to the announcement on my site. motivation

From the README:

Major features:

• Cholesky decomposition
• LU decomposition
• QR decomposition
• Schur decomposition
• Singular value decomposition
• Eigenvalues and eigenvectors of a general matrix
• Minimization by least squares
• Linear equation solving
• Stand-alone LAPACK bindings: call any LAPACK routine from directly from ruby.

LinuxTag program

 Ich habe mal ein erstes deutsches 3.7g zusammengestellt:

 http://www.iam.unibe.ch/~denker/Squeak3.7gDeutsch.zip

 Das ist einfach das letzte 3.7g Full Image + deutsche uebersetzungen.
 Die englischen Fenster habe ich geloescht, die engl. Demo-Projekte sind
 aber noch drin.

 Was wir brauchen ist

 -> Eine deutscher Willkommen-text
 -> ein paar deutsche Demo Projekte
 -> am besten ein deutsches tutorial...

 Bi den Einfuehrungs-texten sollten wir uns nicht an den englischen orientieren,
 die sind naemlich eher sinnlos, denke ich.

Significant functionality was added:

• Credit Management & Dunning
• Improved Discount Management
• Payment-Invoice Allocation improvements (incl. Auto Match)
• Ship/Receive in multiple UOMs
• Service Level Agreements
• GL Distribution
• Prepayment Order Improvements
• Financial Report writer improvements

Technical Improvements:

• Support of Oracle 10g
• Improved Database Connection management
• Performance improvements

Significant reduction of open bugs.