Performance of the same LoopFinder F# code over time. 3X better since 2010 and 2x better since 2011. The program was just recompiled to target the latest .Net version, each time.
Virtually all vehicles today operate an internal network called the CAN bus. Different modules (or ECUs – electronic control units) in the car communicate with each other via this network (e.g. engine, transmission, dashboard, etc.). In this post I reference a CAN bus reader built with F# and Xamarin.Android based on the OpenXC platform (http://openxcplatform.com/).
Update: Also see this post.
ClickOnce is very useful technology for delivering applications. Applications are published to the server but run on the client. If a new version is published to the server, the clients can easily upgrade to the new version via a single click. Such applications are sometimes called ‘smart clients’ because they fall somewhere between traditional rich clients and web applications.
In this post I share a build script for packaging F# projects for ClickOnce deployment.
Here is a very simple encryption / decryption code snippet using symmetric keys.
It’s ok for some low security usages.
Code is here: http://fssnip.net/iv
//encrypt SimpleCrypt.encr "data to be encrypted" //decrypt SimpleCrypt.decr "... encrypted data ...."
Yesterday I attended my first MobiDevDay conference and presented a talk titled “Functional Programming for the Rich Mobile Web with F#.
The scenario for the demo’ed sample app is that a central website receives orders for flowers from all across the US. Local florists can look at the orders in their area and choose to fill the ones they can – with the help of the sample app. The app has only two screens as shown below:
My previous post on Bin Packing described how the best fit heuristic algorithm can be used for creating job shop schedules. However, as they say, a picture is worth a thousand words so being able to visualize a schedule would be very desirable.
Above is a Gantt chart created from a schedule of machine jobs. The sample F# script code describing how to generate such a chart is here: http://fssnip.net/hK
Many types of computational problems can be mapped to ‘bin packing’. Scheduling of jobs on a set of available machines is one such problem which is common in job shop type environments.
Here is some F# code that implements the ‘best fit’ heuristic algorithm for bin packing:
Also provided is an implementation of binary tree with duplicates for tracking remaining bin capacities: