Use the address bar: After the part of the url that says "?pageName=", write the name of the new page you'd like. Use the underscore (_) character instead of spaces (if you don't see pageName in the url, click on the 'article' tab above). You can then edit that new page, save and submit.
Link to the new page and then create it by clicking the link:
In an existing page from which you want to have a link to your new page, add a link of the form " xxxx " (without the quatotation marks of course) where you replace the xxx with the name of your new page
Click "Save and Submit"
Click on the new link that will appear with your xxx. This will open your new page
Edit this page
Save and Submit
Uploading images or notebooks
Go to the upload page. It is linked in the left bar and in the special pages. it has more instructions and the copyright notice!
You can upload notebooks ending in *.nb. You can then link to them by using Media:filename|notebook between double brackets.
To insert code fragments from Mathematica, you can Cut and Paste directly from a Mathematica notebook to the wiki edit window, provided you use Copy As, Plain Text in Mathematica.
To get these fragments to appear in a white box, like the example below, start each line with a space.
The following Mathematica sequence will find the determinant of the 6× matrix whose ''i'', ''j'''th entry contains ''ij'' with all zero entries replaced as 1.