Here is a mirror of this web-site, but in a parallel universe using black text on a pale background. >>

NEW See some screen-shots of the new Windows 7 Beta.  >>

The latest addition is an Unscramble program to solve Jumble™ puzzles.  >>

The Sydney PC User Group is an independent club of users discussing all aspects of using personal computers and helping each other solve computer problems.  It also has several Special Interest Groups or SIGs.  >>

Microprocessors such as Programmable Integrated Circuits made by the Microchip company are easily programmed to perform various interesting sensing and control functions.  The PIC Club grew out of the Programming SIG of the Sydney PCUG.  >>

This web-page has been written with NetObjects Fusion, the program used by the Web Design SIG.  See the SIG Reports for recent meeting information.

See my experiments with Joomla! which is an open source online web-page editing package, available on most web hosting sites.  >>

Use the inbuilt DOS ftp command to upload files quickly from a batch file.  If uploading different files each time, however, use a Windows FTP program like the free Core-FTP program instead.

Read the details in this short tutorial.  >>

See what soft hyphens are all about.  Enable Javascript and check out your browser by loading this test page.  We check the Windows version of Apple's Safari browser.  >>

Unicodes may be necessary in HTML when named symbols are not available (for Cyrillic characters Я and и for example).  >>

NEW CSE Version Check that you have valid HTML or XHTML code online using the World Wide Web Consortium (W3C) official site or offline using the free CSE HTML Validator Lite v9.02 program.  >>

A 102-digit personal record prime factor has been found on February 4th, 2009.  It divides the 205-digit number (37 × 10²⁰⁴ + 17) / 9 or 41₂₀₃3.

Work is progressing on factorising numbers of the form k • 2ⁿ ± 1 with k (odd) from 3 to 13 and n ≤ 1000.  The results are recorded by Mikael Klasson.  >>

Msieve, written by Jason Papadopoulos is described.  It contains fast code to solve large sets of linear equations.  See the new Perl script to automate Msieve post-processing after a GGNFS run.  >>

See our friend Bill and a "floating ship" which appears to hang suspended above the horizon...  >>

Quoting from the web-site:

Some interesting numbers to factorise have repeated digits.  For example, 2 • 10¹⁵⁷ - 1 (or 1 followed by 157 nines written as 19₁₅₇).  See the database of Makoto Kamada for a large collection of these numbers.  >>