This page is intended to provide a quick diagnosis of your computer's configuration, particularly its ability to function properly for using the i-structures course applets.
Browser
You are using unknown sous mozilla/5.0 applewebkit/537.36 (khtml, like gecko;.
The site was initially designed to provide a good browsing experience with the FireFox, Chrome, Safari, Opera, and Edge browsers. In any case, it is recommended to use a recent version, regardless of the browser being used.
Javascript applet
The i-Cremona applet in JavaScript is actively used on the i-structures site, particularly in the exercises. If you see an applet next to you showing the Golden Gate Bridge at sunset with black forces and a red cable and you can activate either of the applet's buttons by clicking on them with your mouse, that's a very good sign: your computer is capable of running the i-Cremona applet.
If, on the other hand, you see nothing, try using another browser (e.g., FireFox). It should be noted that while the i-Cremona applet in JavaScript displays on many tablets and phones running Android or iOS, it is generally not possible at this stage to perform allrequired operations in the exercises on these devices.