Statement: Epsilon Precision provides solutions for smaller problems on a speculative basis. Speculative in the sense that we don't serve the needs of any clients, but seek to recognize on our own the real-world problems that an industry may face and take the initiative to provide a programmatic solution to those problems. All work is fully documented and tested with the highest quality control.

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Speculative Software Solutions

 

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VBA - Check if Executable is Found by Cmd Shell PDF Print E-mail
Wednesday, 29 July 2009 21:51

I have found that quite often I write a piece of VBA code and will end up calling third-party software from within VBA.  Naturally this poses a problem if the VBA code is taken to a different machine and the software being called is not installed or can't be found by Windows.  As kind of a sanity check I show below a small VBA function that tries to look for the tools "ls", "grep", and "awk" on a Windows machine (obviously these are Windows-ported GNU tools!), determines if they are callable from the command-line, and will exit the VBA code execution if any executable cannot be called.

Read more: VBA - Check if Executable is Found by Cmd Shell
 
Slackware Wireless Tutorial PDF Print E-mail
Thursday, 28 May 2009 16:41

In this tutorial I will give some guidelines to getting wireless up and running in Slackware (in my case, version 12.2).

I say "guidelines" because I don't entirely understand the Slackware system and are more familiar with Debian; but wanted to try something new!

My particular card is an Engenius EPI-3601S and it uses the Atheros 5001X+ chipset (chip number AR5211). A particularly nice feature of this card is its 600mW power rating, which is far beyond that of big-box store cards by manufacturers like Linksys, D-Link, etc.

The driver for this chipset is actively developed by the Mad-WiFi Project and is known as the 'ath5k' driver.
Read more: Slackware Wireless Tutorial
 
Setting up WDS in OpenWRT PDF Print E-mail
Saturday, 13 October 2007 20:20

Here I will show you how to set up WDS (Wireless Distribution System) using OpenWRT and two OpenWRT-compliant
routers. WDS is particularily useful for people who live in a home where wiring through the walls is not feasible, and while
wireless is an option, there may be cases where either A) The access point is located too far for the conventional
wireless USB or PCMCIA card, or B) You want wired computers connected to a wireless router which will inturn connect
to another wireless router. Yet only one acts as a DHCP server, thus allowing you to extend your network in a more
convenient way.
Read more: Setting up WDS in OpenWRT
 
Neural Networks & Stocks PDF Print E-mail
Sunday, 05 April 2009 06:27

I am currently developing an artificial neural network analyzer against the stock market. While still in the very early stages, the program can successfully parse a major market's online database and run the current snapshot of the DB through a feed-forward neural network on a nightly basis; generating various buy/sell positions for each stock in the major market. Also nearing completion are various auxillary database-integrity checkers and performance measuring utilities. Given the size of the project and my solo work on it, I am staying pretty "closed envelope" on this one until it reaches a "ready for market" status. I'll post various updates as work progresses. :)

 
Linux NFS with the TVIX Media Center PDF Print E-mail
Saturday, 13 October 2007 18:32
Setting up a NFS (Network File System) protocol in Debian is quite easy. Essentially there is two ways of implementing

NFS; a software way that runs in user-land memory, and a kernel way that runs in kernel-land memory. I personally
believe the kernel approach is more stable and fast, so it is what I discuss below.
Read more: Linux NFS with the TVIX Media Center
 

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