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I recently gave a lab session on using dot matrix plots to detect interesting sequence patterns using Dotlet to some students in genetics. A group showed an interesting palindrome from Tetrahymena pigmentosa rDNA, about 250bp long. I did a quick … Continue reading
It’ll be great to join in the fun to hold a series of talks and workshops in R right here.
I’m a big fan of good graphs – clean, informative and easy to understand graphs. This requires thinking about difficulties the reader may have if we are to present a graph in a certain way. To see some of the … Continue reading
I was reading the morning paper just now and came across the following puzzle: A watermelon vendor sells half of her melons, and then restocks 200 more at the end of first day. On the next day, she sells half … Continue reading
Once in a while, the newspaper talks about youngsters or adults who have the seemingly incredible ability to perform arithmetic computations in their head for large integers. Actually, this all boils down to a basic understanding of algebra and algorithmic … Continue reading
The PhD comics series has been running for quite some time. Just love the concept and the numerous ohsotrue depictions of graduate student life plus some ridiculous stuff that happen in the academic circle.
I learned something new today from visitor Sophos. He has an interesting geometric proof of the series 1/4 + 1/4^2 + … = 1/3. You can read it here. I think it is brilliant, and it reminds me of Tetris, … Continue reading