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Creating a Random Expression in Haskell

Posted 12-22-2009 at 06:10 AM by primenu

I have a Haskell program for parsing and evaluating an mathematical expression of type:
data Expr
= Num Double
| Add Expr Expr
| Mul Expr Expr
| Sin Expr
| Cos Expr
| Var Name
| Neg Expr
deriving (Eq,Show)

type Name = String

I have the defined a property to perform quickcheck: to check the readExpr and showExpr are valid bothway round, here readExpr takes a string of type "2*3+x" and converts it...
LQ Newbie
Posted in Uncategorized
Views 931 Comments 0 primenu is offline

Kill a headache - EasyBCD

Posted 12-20-2009 at 05:18 PM by Indymaynard

Having just purchased a Sager NP9850 (18.4" Display, Dual nVidia GeForce 280m, 2.53GHz Quad Core Extreme, RAID0) notebook (read; monster), I ran into some difficulties installing Ubuntu. I had a horrible time figuring out the problem, so I decided that it was to the benefit of all mankind that I explain how to work this. My toils involved Windows 7 and Ubuntu 9.10.

Normally, I would totally condone destroying the plague on my hard drive, but I have family that needs help with...
Posted in Uncategorized
Views 1401 Comments 1 Indymaynard is offline

New Laptop / What Is Best Distro?

Posted 12-20-2009 at 01:50 PM by larry51

I have a new HP laptop and would like to know what linux disto is best to run on live cd or install too !!!
LQ Newbie
Posted in Uncategorized
Views 992 Comments 1 larry51 is offline

Autotools: Somebody Does Understand!

Posted 12-19-2009 at 09:25 PM by CoderMan

So, I just recently switched my FOSS project from a single Makefile to autotools. Sadly, my guide for this journey was the official autotools documentation, and it was a less the pleasant experience. In fact, I got so discouraged I actually posted a poll to determine whether it would be less painful to learn autotools or to shoot myself in the foot.

I just came across the above...
Posted in Uncategorized
Views 818 Comments 0 CoderMan is offline

CentOS 5.4 netinstall

Posted 12-19-2009 at 10:51 AM by anand.arumug
Updated 02-10-2010 at 12:25 PM by anand.arumug (Updated an URL)

I just recently tried installing CentOS on a old Toshiba laptop (Model: M45-S269) which has a DVD-RW drive but functions only as a CD drive. So the easiest option for me to install CentOS was through the Internet.

Here is what I did:

1) Depending on your PCs processor architecture download the CentOS netinstall.iso file from
CentOS 5.4 ISOs

2) I followed the steps described in the following URL CentOS NetInstall 5.3 written by Chris Gountanis...
Posted in CentOS
Views 5806 Comments 0 anand.arumug is offline


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