More free online classes – for anyone across the World!

There existed OpenCourseWares from MIT, CMU, Stanford and a host of other Universities. Though the students could take these videos any time they liked, there did not exist a goodonline common platform for the students to discuss and get things cleared. To alleviate this problem, there has recently been a surge in the number of […]

Solution : “Error: Problem during compilation – ifort not found in PATH.” on Abaqus and Intel Visual Fortran on UBUNTU Linux

I got this error Error: Problem during compilation – ifort not found in PATH on Ubuntu (using Intel Visual Fortran compiler and Abaqus 6.11). I was trying to use it with the SIGINI subroutine I was trying to get the solutions online. I found that this simple hack works. Instead of calling abaqus job=inpFileName use […]

How to embed a Wolfram Mathematica demonstration in your webpage in 3 easy steps

This is a test post + a tutotial on embedding your Mathematica demos in your web-page ! Convert the interactive document into a CDF (Computable Document Format). You can get a number of them in the Wolfram demonstration projects. Upload the document to your server Insert the following snippet of code, to point to the […]

Ubuntu – how I installed NVIDIA graphics card on Ubuntu 11.04

– GTX – http://www.nvidia.com/object/product_geforce_gtx_295_us.html Goto “Drivers & Download” section : http://www.nvidia.com/Download/index.aspx?lang=en-us – download the latest drivers – NVIDIA-Linux-x86_64-290.10.run make it executable – connect the card – reboot – goto terminal – install it sudo ./<filename> sudo ./NVIDIA-Linux-x86_64-290.10.run – disable the current graphics card ? Nouveau (yes) – then reboot (sudo reboot now) – the old […]

TiddlyWiki – useful tips – archiving/compressing the backups

In case you are new to this word TiddlyWiki, in short, it is a Here is an introductory post about TiddlyWiki. And here is a sample of getting organized – a (long but) one-liner to include your Google Calendar in your TiddlyWiki (or in any other HTML page you wish) I find myself using TiddlyWiki […]

PHP on Linux (Ubuntu 11.04 – Natty Narwhal)

These are some of the codes that helped me getting started in using Apache server on Ubuntu 11.04 (Natty Narwhal) Finding out the user group <?php // outputs the username that owns the running php/httpd process // (on a system with the “whoami” executable in the path) echo exec(‘whoami’); ?> (often it is www-data ) source : http://php.net/manual/en/function.exec.php Check you have the permission. If not change the pormissions for the var/www folder on Linux (in […]