Distractions and amusements, with a sandwich and coffee.
On March 14th celebrate `\pi` Day. Hug `\pi`—find a way to do it.
For those who favour `\tau=2\pi` will have to postpone celebrations until July 26th. That's what you get for thinking that `\pi` is wrong.
If you're not into details, you may opt to party on July 22nd, which is `\pi` approximation day (`\pi` ≈ 22/7). It's 20% more accurate that the official `\pi` day!
Finally, if you believe that `\pi = 3`, you should read why `\pi` is not equal to 3.
For the 2014 `\pi` day, two styles of posters are available: folded paths and frequency circles.
The folded paths show `\pi` on a path that maximizes adjacent prime digits and were created using a protein-folding algorithm.
The frequency circles colourfully depict the ratio of digits in groupings of 3 or 6. Oh, look, there's the Feynman Point!
E=-23
of 64 digits of Pi, sorted by aspect ratio. Start (3) and end (2) digits are highlighted.
(zoom, BUY ARTWORK)
E=-23
of 64 digits of Pi, sorted by aspect ratio. Start (3) and end (2) digits are highlighted.
(zoom, BUY ARTWORK)
E=-23
of 64 digits of Pi, sorted by aspect ratio. Prime (2 3 5 7) digits are are highlighted.
(zoom, BUY ARTWORK)
E=-23
of 64 digits of Pi, sorted by aspect ratio. Digits are colored by prime/composite status.
(zoom, BUY ARTWORK)
E=-223 to -220
of 768 digits of Pi, sorted by aspect ratio. Start (3) and end (999999) digits are highlighted.
(zoom, BUY ARTWORK)
E=-223 to -220
of 768 digits of Pi, sorted by aspect ratio.. Start (3) and end (999999) digits are highlighted.
(zoom, BUY ARTWORK)
E=-223 to -220
of 768 digits of Pi, sorted by aspect ratio.. Prime (2 3 5 7) digits are are highlighted.
(zoom, BUY ARTWORK)
E=-223 to -220
of 768 digits of Pi, sorted by aspect ratio. Digits are colored by prime/composite status.
(zoom, BUY ARTWORK)
E=-223 to -209
of 768 digits of Pi, sorted by distance between start and end points (2.2–7.0). Start (3) and end (999999) digits are highlighted.
(zoom)
E=-223
of 768 digits of Pi. Start (3) and end (999999) digits are highlighted, as well as all prime digits. This path took about 1 CPU year to find. (37x51, r=0.725, area=1887, cm=1.9/13.4, dend=24.4)
(zoom)
One moment you're :)
and the next you're :-.
Make sense of it all with my Tree of Emotional life—a hierarchical account of how we feel.
One of my color tools, the colorsnap
application snaps colors in an image to a set of reference colors and reports their proportion.
Below is Times Square rendered using the colors of the MTA subway lines.
Colors used by the New York MTA subway lines.
Drugs could be more effective if taken when the genetic proteins they target are most active.
Design tip: rediscover CMYK primaries.
More of my American Scientific Graphic Science designs
Ruben et al. A database of tissue-specific rhythmically expressed human genes has potential applications in circadian medicine Science Translational Medicine 10 Issue 458, eaat8806.
We focus on the important distinction between confidence intervals, typically used to express uncertainty of a sampling statistic such as the mean and, prediction and tolerance intervals, used to make statements about the next value to be drawn from the population.
Confidence intervals provide coverage of a single point—the population mean—with the assurance that the probability of non-coverage is some acceptable value (e.g. 0.05). On the other hand, prediction and tolerance intervals both give information about typical values from the population and the percentage of the population expected to be in the interval. For example, a tolerance interval can be configured to tell us what fraction of sampled values (e.g. 95%) will fall into an interval some fraction of the time (e.g. 95%).
Altman, N. & Krzywinski, M. (2018) Points of significance: Predicting with confidence and tolerance Nature Methods 15:843–844.
Krzywinski, M. & Altman, N. (2013) Points of significance: Importance of being uncertain. Nature Methods 10:809–810.
A 4-day introductory course on genome data parsing and visualization using Circos. Prepared for the Bioinformatics and Genome Analysis course in Institut Pasteur Tunis, Tunis, Tunisia.
Data visualization should be informative and, where possible, tasty.
Stefan Reuscher from Bioscience and Biotechnology Center at Nagoya University celebrates a publication with a Circos cake.
The cake shows an overview of a de-novo assembled genome of a wild rice species Oryza longistaminata.