Tips for Mathematica users
I like your blog very much. It is well laid out and illustrated. I have personally not worked with approximation algorithms, but the concept appeals to me, and I have the feeling that approximation and discrete math will continue to thrive, with many new and interesting problems turning up. Euclid had the compass and straight edge, and look what he was able to accomplish. We have (speaks in a barely audible, low tone) Mathematica.